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TOZO NC7 Review

Last updated: 3 months ago
13 min read
Editor
rating
4.0
TOZO NC7 earbuds

TOZO NC7 offer most of the TOZO flagship performance while costing almost half. The ANC performance can’t quite compete with the best competitors, but their sound and incredibly long battery life will win you over.

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  • List price (MSRP): $49.99
  • Manufacturer: TOZO

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Related: Best earbuds under $50Most comfortable earbudsBest budget noise cancelling headphones

Our Conclusion

TOZO NC7 (the one we’re reviewing) is an updated model from 2022 sporting new features, like Bluetooth 5.3 and app customization.

And thank God for the app, which saves what would otherwise be an average TWS earbuds. The sound only starts to shine after applying heavy EQ.

We tested the battery and one of the main selling points of TOZO NC7 is their insane battery life of 9 hours and 10 minutes per charge. This is more than any ANC earbuds we’ve tested so far.

Also, thanks to their feather-like fit, you can barely feel them in your ears. However, due to their inadequate stability, you should avoid using them for intense sports activities.

Learn about other features and how they stack up to strong competition from earbuds under $100.

UPDATE March 6, 2024: Updated the ANC score (to more accurately represent the actual performance) and added tables for easier comparison between different earbuds.

Pros & Cons:

  • Great & fairly natural sound quality (after EQ)
  • Feature-packed app with lots of customizations
  • Quite effective active noise cancellation for the price
  • Battery life of 9 hours per charge (with ANC)
  • No Game mode means visible audio lag in mobile games
  • Transparency mode produces audible background hiss

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1.
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Battery life Test:5h
CONTENTS (show more)

    Our Analysis and Test Results

    During our tests, these earbuds proved to be well worth their money, especially in ANC effectiveness and sound, although the latter needs audio equalization to sound the best.

    On the other hand, there’s a visible audio latency when gaming and a hiss when using the ambient sound mode as a result of over boosting the ambient audio.

    Sound

    Star Rating
    4.0 Great

    TOZO NC7 have a pretty bloated and harsh sound out of the box. But with some EQ magic, it gets MUCH better. There’s still some refinement missing, but for $50, you won’t be disappointed.

    Key points:

    • Default sound signature is heavily V-shaped (boosted bass and upper treble frequencies).
    • Reducing those two frequency regions in the app’s EQ makes the sound more controlled.
    • Soundstage is pretty small, and the imaging is somewhat blurry near the center audio channel.

    Check our TOZO NC7 A/B sound test

    TOZO NC7 Sound Quality Test – HeadphonesAddict

    Learn how to understand sound comparisons.

    Gone are the days when you were stuck with the default sound. Now, most true wireless earbuds above $50 come with apps and custom EQs.

    Originally, the sound was bad. Getting the best sound out of the box is better (so you can have the same sound when jumping between devices). But custom equalization saves the TOZO NC7.

    TOZO NC7 frequency response

    TOZO NC7 frequency measurement
    TOZO NC7’s biggest issue are enormous bass and treble boosts.

    Bass: Far too boosted, but manageable with EQ

    By default, the low-frequency response is extremely boosted (distinct V-shape). The boost doesn’t reach midrange, yet it muddies it with excessive warmth.

    Almost all songs have a strong bass presence, with a powerful bass slam and rumble. Drums at the beginning of “Reality Dream II” by Riverside are genuinely overwhelming (to put it mildly).

    Reducing a large portion of low-end in the app’s custom EQ gives the bass a more tactile feel and far less muddiness.

    Generally, the bass is well-controlled, even when listening to fast-tempo music. Moreover, it has a good texture, presenting bass guitar plucks with good detail.

    The overall quantity is still above neutral, even after EQ. However, it’s noticeably more manageable.

    Listen to the difference between EQ presets and our custom EQ sound profile:

    TOZO NC7 Custom EQ & Presets Comparison – HeadphonesAddict

    Midrange: Muted in some areas, but fixable with the EQ

    The default sound signature muddies up the midrange by making it warm in tone. 

    There’s also some recession above 3kHz, which mutes the vocals and instruments, making them quieter. Consequently, your music doesn’t sound as lively as it should.

    With some equalization in the TOZO app, you bring back the vocals and instruments, like electric guitars, to sound louder and angrier.

    It’s worth pointing out that male vocals sound better than female. Although, it depends on what you listen to. Dua Lipa sounds too bright, whereas Tarja from Nightwish sounds just right.

    TOZO NC7 testing
    TOZO NC7 went through a lot of rigorous testing and measurements.

    Treble: Boosted to the point of sibilance

    There’s nothing wrong with an energetic treble. However, TOZO boosted it in the wrong places, causing harshness and vocal sibilance. Listening to electronic music or female vocals further intensifies the harshness.

    Our first test track from the video shows the harshness the most, especially during the chorus. That kind of tuning can get fatiguing fast.

    Using EQ somewhat calms the treble down. The bad news is that you can only partially fix it.

    You regain some of the texture from cymbals, which produce a lovely shimmer. Music genres like jazz and smoother versions of rock, like when listening to well-produced tracks from Dire Straits, is where you’ll love this type of tuning.

    Our CUSTOM EQ SETTINGS for the most natural sound:

    TOZO NC7 custom EQ
    Our custom EQ settings for the most natural sound.

    The soundstage is intimate, giving you a slightly better depth than width. Nonetheless, the sound doesn’t feel trapped inside your head, which is what actually matters.

    Unfortunately, the imaging is a bit unconcise, especially with sounds near the center.

    Do ear tips with a dome sound different than flattened ones?

    Doing some A/B comparisons and measurements, we found no significant sound difference between the ear tip types. If anything, flat tips provide a slightly better seal, which can affect bass response during longer listening sessions.

    TOZO NC7 ear tips difference
    Dome tips (left) vs. flat head tips (right).

    Sound comparison

    My conclusion

    Overall, TOZO NC7 desperately need EQ to show their muscles. Their sound quality can easily surpass competitors at around $50.

    Even more impressive is that they (technically) sound equally as good as TOZO Golden X1. This is the company’s flagship model costing $150.

    They’re a great pick for someone who likes natural sound but wants a splash of extra bass and sparkle. They’re also fantastic picks for a basshead on default settings.

    Earbud guides you should check:

    Comfort & Fit

    Star Rating
    4.0 Great

    TOZO NC7 have a very lightweight design with a nicely curved and smooth surface to fit comfortably in your ears. Since they rely entirely on friction to stay in place, you should avoid using them during extreme workouts.

    Despite having one of the most long-lasting battery lives among ANC earbuds, TOZO NC7 are neither bulky nor heavy. They feel slightly heavier in hands than, for example, Edifier TWS1 Pro 2, but still, what I would consider “featherlike”.

    Most importantly, they have a relatively regular size to fit inside most human ears. Furthermore, they don’t require you to push them too deep, and the in-ear seal they make is without noticeable pressure.

    All of that results in a very comfortable experience. I can easily wear them for hours during my long outdoor walks.

    TOZO NC7 in the ears
    TOZO NC7 easily fit into a normal-sized ear.

    During regular use, earbuds provide a stable fit. That means you can use them for outdoor walking.

    But, during our headshaking test, they lost grip relatively quickly. First, you notice the loss of bass quality and quantity, and then you feel earbuds sliding out. Meaning that you should avoid them for outdoor runs.

    You get 6 pairs of silicone ear tips, 3 with a dome shape and 3 with a flat top. The flap-top tips provide the most stable fit and consistent sound.

    Nonetheless, TOZO NC7 are pretty stable for earbuds without ear wings or hooks. But you should avoid purchasing them solely for sports.

    Compared to other similar models

    TOZO NC7 are comfortable, more so than SoundPEATS Sonic but not as much as the EarFun Air S, which are also slightly more stable during sports activities.

    Durability

    Star Rating
    4.0 Great

    TOZO NC7 boast an IPX6 rating, which is good enough to bring them in the shower but not in the pool. On the other hand, the earbuds feel well made (but the case feels cheap).

    The TOZO NC7’s build quality is relatively solid. The earbuds lack visible weak spots, the most concerning being the nozzle mesh, which allows you to see the internals.

    But don’t worry; the mesh is tiny enough to prevent water from passing through. The same goes for exposed microphone mashes all over the earbuds.

    TOZO NC7 sensors
    TOZO earbuds have a lot of exposed openings and contact points.

    Earbuds are rated for an IPX6, which is good enough for heavy water splashes. If you like listening to music under the shower, you can happily do so with NC7.

    However, IPX6 is still one rating away from waterproofness, so you should avoid dunking them underwater just to be safe.

    You must be similarly cautious with the charging case. It’s compact and easily pocketable, but the lid doesn’t feel very substantial.

    While the bottom part of the case is okay, the lid is thin and wobbly. The hinge is so small it can easily break by applying a bit of force. Also, the case isn’t sweatproof, so don’t mix it with sweaty clothes.

    One thing worth mentioning is the ear tips. They use a proprietary locking method, so be gentle when replacing them. Pulling too hard will tear the silicone.

    Are they suitable for…

    • Wearing in the rain: Suitable. Rain, light or heavy, shouldn’t be an issue.
    • Running & exercising outside: Suitable, as sweat can’t hurt them. But beware of the dust since earbuds don’t explicitly mention dust resistance.
    • Sweating: Suitable, even for heavy sweaters.
    • Dipping underwater: Not suitable; they should have at least an IPX7.
    Wearing in light rainSuitable
    Wearing in heavy rainSuitable
    ExercisingSuitable
    SweatingSuitable
    Dipping underwaterNot suitable

    Durability comparison

    Earbuds are more durable than most earbuds around $50, especially since they also support active noise cancelling (UGREEN HiTune T3 that also have ANC even completely lack IP rating).

    Battery

    Star Rating
    5.0 Perfect

    TOZO NC7 have the longest battery life out of all ANC we’ve tested, clocking at 9 hours and 10 minutes per charge. That leaves an extra 36 hours inside the Qi-supported charging case.

    Tested battery life9 hours 10 minutes
    (with ANC ON)
    Official battery life18 hours
    (with ANC OFF)
    Differencen/a
    Quick chargingn/a
    Qi wireless chargingYes

    TOZO NC7 battery comparison:

    TOZO NC7 battery comparison

    In the marketing material, TOZO promises some incredible battery life numbers, up to 18 hours from the buds and 54 hours inside the charging case. But that’s without ANC.

    For our test, we enabled ANC and let earbuds play at 50% volume. The result was:

    • 9 hours and 10 minutes of playtime on a single charge.

    While that’s half as much as advertised, it is still a fantastic result. That puts TOZO NC7 first among all ANC earbuds we’ve reviewed.

    TOZO NC7 case charge LEDs
    Four LEDs in the front of the case show the remaining battery in it.

    Furthermore, since active noise cancellation doesn’t affect sound quality (some headphones sound better with ANC on), you can extend the battery by only enabling it when needed.

    Like with earbuds, the battery expectancy in the charging case also reduces by half, leaving you with around 36 hours of additional juice (or four additional charges).

    TOZO is secretive about features like fast charging support and more accurate charging times.

    You at least get Qi wireless charging support, which can be useful if you already have a wireless charging pad in the house or in a car.

    TOZO NC7 charging port
    TOZO NC7 charge via USB-C port on the back of the case or wirelessly from the bottom.

    Here’s the battery rating comparison with similar earbuds:

    Note: The battery rating considers battery life compared to alternatives, wireless charging support, and the speed of recharging.

    Features

    Star Rating
    4.5 Almost Perfect

    TOZO NC7 are loaded with many useful features, like EQ and controls customizer, different ANC modes, and even a “relaxing sounds” section. Unfortunately, their call quality is rather mediocre.

    As mentioned at the start of the review, features save the TOZO NC7 from being average. Especially the customizable EQ section.

    But first thing first, here are all the features that come with TOZO NC7:

    Starting with the TOZO app, it’s intuitive to navigate, with big buttons and widgets to access the most essential features. Everything is between 1 and 2 clicks away.

    TOZO NC7 app first page
    This is what the front page of the TOZO Sound app looks like.

    One annoying thing missing is a toggle to turn off the proximity sensor for the automatic play/pause feature. Also, TOZO has chosen a funny voice prompt whenever you switch to a different ANC mode.

    One interesting thing with mobile apps from Chinese headphone brands is the built-in marketplace section. You can see the same thing in apps from Edifier and SoundPEATS.

    Customizable controls

    Earbuds operate with touch controls. You can (almost) fully customize the commands. That ensures you don’t need to constantly reach for your smartphone.

    The only gesture limited to volume up or down is the “long press”. Otherwise, you can fully customize one, double, or triple-click gestures with commands like:

    • Play/pause song
    • Repeat/previous song
    • Switch ANC modes
    • Voice assistant
    TOZO NC7 custom controls
    You can go pretty in-depth with control customization on NC7.

    Custom audio equalizer

    Custom EQ is a feature that often saves headphones from mediocrity. TOZO NC7 are no different. 

    Fortunately, the in-app’s 10-band EQ offers the most crucial frequency bands to make vital corrections.

    On top of the custom equalizer, you also get 16 EQ presets to play with and find the perfect sound. Although, we recommend trying our EQ if you want a more natural tuning.

    TOZO NC7 EQ settings app
    All the EQ presets you can pick from in the TOZO app.

    Relaxing sounds

    Hidden under the “Explore” tab, there’s a large selection of audio clips depicting sounds of nature or even some hypnotic tunes to help you relax.

    Clips range from a minute to a few minutes long, and you can also set them to play in a loop.

    However, for some reason, most tracks refuse to play. It could be a licensing issue, but that doesn’t make much sense.

    TOZO NC7 soothing sounds
    The “Soothing or relaxing sounds” section is hidden in the Explore tab.

    Microphone quality

    TOZO NC7 have a decent call quality in quieter environments but quickly start distorting in the presence of louder ambient noise.

    TOZO NC7 microphone test: (no noise test from 0:00-0:25, with background noise test from O:25-0:53)

    Earbuds have dual noise-cancelling microphones for making phone calls, and they do a decent job when you speak in a quiet room.

    You sound a bit echoey (due to echoes in the room) and muffled, but the others should easily understand you.

    It is loud external sounds that cause problems with background distortion. The noise reduction tech tries hard to mute the sound of passing cars, but it isn’t very successful.

    You end up with an even more muffled voice and occasionally distracting background distortion. The quality is still passable if you’re in a hurry, but we still recommend avoiding noisy environments before making a call.

    Features rating comparison

    Noise Isolation

    Star Rating
    3.0 Good

    TOZO NC7 offer a passive noise isolation that’s a touch better than similarly priced earbuds. That said, without music, you can still hear louder sounds.

    Measured average noise isolation13,07 dBA

    We see a reoccurring trend of somewhat average passive noise isolation performances in in-ear earbuds. TOZO NC7 are slightly better than most recently reviewed models. They reduce noise a few dB more than the rest.

    TOZO NC7 passive isolation

    They’re the most effective from 4kHz up, with the 6-7kHz region being a slight anomaly. NC7’s performance is similar to the 1MORE Aero, although the latter are better in higher frequencies.

    In our experience, the effectiveness of noise isolation between dome and flat ear tips remains the same. Overall, as long as you play some music, you can easily take these earbuds someplace crowded.

    Moreover, the sound leakage is minimal, even at the highest volume, so no one around you can hear your music (unless you’re in a library).

    Here’s a table of how effective is TOZO NC7’s passive noise isolation at blocking specific frequencies:

    FrequencyNoise reduction
    dB SPL
    Noise reduction
    dBA (A-weighted)
    100 Hz+1,3 dB-17,8 dBA
    200 Hz3,3 dB-7,5 dBA
    400 Hz4,7 dB-0,1 dBA
    600 Hz5,3 dB3,1 dBA
    1 kHz6,4 dB6,4 dBA
    2 kHz16,8 dB18 dBA
    4 kHz35,7 dB36,7 dBA
    6 kHz16 dB16,1 dBA
    10 kHz34,1 dB31,6 dBA
    15 kHz24,8 dB18,8 dBA
    Average13,07 dBA
    A-weighted values from the International standard IEC 61672:2003

    Noise isolation rating comparison with other models

    Noise Cancelling

    Star Rating
    3.5 Almost Great

    TOZO NC7 have an ANC performance that’s better than the company’s flagship model. They also have a good ambient sound mode with different intensities, but you can hear some static noise on higher ones.

    Measured avg. noise reduction with ANC17,32 dBA
    Cumulative noise reduction of isolation + ANC

    TOZO NC7 active noise cancelling test:

    TOZO NC7 ANC Test – HeadphonesAddict

    Besides sound and battery, the NC7’s biggest surprise is active noise cancellation. Primarily because it beats the performance of the TOZO Golden X1.

    Earbuds are the most effective in the upper bass/lower treble region, so you shouldn’t hear much of the low-end hum. While they are less good than EarFun Air Pro 3, they make a big difference when riding on public transport.

    Here’s the table with Google Pixel Buds Pro ANC test results:

    FrequencyNoise cancelling
    dB SPL
    Noise cancelling
    dBA (A-weighted)
    100 Hz18 dB-1,1 dBA
    200 Hz27,6 dB16,8 dBA
    400 Hz21,7 dB16,9 dBA
    600 Hz11,5 dB9,3 dBA
    1 kHz5,9 dB5,9 dBA
    2 kHz20,7 dB21,9 dBA
    4 kHz35,3 dB36,3 dBA
    6 kHz16,8 dB16,9 dBA
    10 kHz33,8 dB31,3 dBA
    15 kHz23,9 dB17,9 dBA
    Average17,32 dBA
    A-weighted values from the International standard IEC 61672:2003

    The app allows you to pick between 3 ANC modes:

    • Leisure mode (lets in more low frequencies while trying to reduce voices)
    • Reduce wind noise (like Leisure mode but worse at voices)
    • ANC (the strongest and most effective setting)
    TOZO NC7 ANC modes comparison
    You can see that compared to the room response (blue), the full ANC gives the best noise-cancelling results (red).

    There is also a custom ANC mode, which lets you regulate the intensity of the ANC if you think that the full ANC power is too strong.

    TOZO NC7 custom ANC levels comparison
    The higher the custom ANC level, the more noise it reduces (the red line represents the strongest level 10).

    What about ambient sound mode?

    Ambient sound mode (or Transparency mode) works really well at boosting voices. It slightly over boosts them, making them appear a bit thin.

    However, that over-boosting comes at a price of background hiss. That typically happens when a weak signal is amplified beyond a certain point.

    Nevertheless, when using the feature outdoors, the hiss isn’t distracting. However, it is audible in a quieter room.

    TOZO NC7 ambient sound mode measurement
    Ambient sound mode boosts regions between 80Hz and 1.8kHz, making voices more present but also thinner.

    Noise cancelling rating comparison

    Bluetooth

    Star Rating
    3.5 Almost Great

    TOZO NC7 have a stable Bluetooth connection but an average indoor range of 40 feet. Sadly, they lack features like Game mode and multipoint.

    Bluetooth version5.3
    Bluetooth range
    (no obstructions)
    240ft (73.1m)
    Bluetooth range
    through a wall
    40ft (12.2m)
    MultipointNo
    Audio latency
    (audio delay)
    n/a

    One of the noticeable upgrades from the 2020 version was the implementation of Bluetooth 5.3. The latter ensures a stable close-range connection, even with multiple wireless devices in the same room.

    However, the indoor long-range remains about average. Based on our indoor Bluetooth test results:

    • Earbuds can play music to about 40 feet (or 12.2 meters) until they start to stutter (right after passing the second brick wall).
    TOZO NC7 buds and case
    TOZO NC7 have a decent Bluetooth range but lack some very useful features, like Game mode.

    That is the range where most Bluetooth headphones stop working, so they’re still within average. That means you can freely walk around nearby rooms but can’t quite take them to the other side of the house.

    Also, earbuds lack Bluetooth multipoint support, so you can’t simultaneously switch connections between different devices.

    What Bluetooth codecs do they use?

    TOZO NC7 use standard Bluetooth codecs like SBC and AAC. For some reason, Android also prefers using AAC, even though it’s less optimized (you might hear your songs slightly quieter).

    TOZO NC7 in hands
    Earbuds lack support for higher-quality audio codecs, and for the price, that’s totally reasonable.

    Is there an audio lag?

    Watching movies and videos on social platforms is completely lag-free, thanks to audio synchronization between the app and earbuds.

    However, you’re stuck with a noticeable latency in mobile games due to the lack of Game mode. It’s big enough to make them unsuitable for competitive gamers.

    Bluetooth rating comparison

    Should You Get TOZO NC7?

    Star Rating
    5.0 Great

    Previously, TOZO NC7 cost $80, which made them unattractive among the competition. However, with the new price of $50, they have suddenly become probably the best all-around pick.

    TOZO NC7 final verdict: Recommended

    Pros & Cons

    • Great & fairly natural sound quality (after EQ)
    • Feature-packed app with lots of customizations
    • Quite effective active noise cancellation for the price
    • Battery life of 9 hours per charge (with ANC)
    • No Game mode means visible audio lag in mobile games
    • Transparency mode produces audible background hiss

    Who are these best for:

    • Commuters who enjoy their music in peace.
    • Students who want to create a quieter environment to study.
    • Bass heads, as their default sound is a definition of the term “subwoofer on your head”.

    Who should avoid them:

    • Only people who might want to look elsewhere are sportspeople looking for something with superb stability.
    TOZO NC7 in the case
    Not as impressive for $80, but for $50, they’re well worth your money.

    How do TOZO NC7 compare to the competition?

    • TOZO NC7 have excellent sound quality that’s better than in most competitors, although they need a lot of EQ-ing.
    • They’re among the comfiest in their price range, even for users with bit smaller ears.
    • TOZO NC7 earbuds have the longest battery life out of all ANC earbuds (so far), clocking more than 9 hours per charge.
    • An IPX6 rating is higher than in most competitive ANC earbuds.
    • Their ANC is among the best at their price.
    • Bluetooth range and latency for gaming are worse than in competitors.
    • Call quality starts distorting quicker than in similarly priced ANC earbuds.

    Here’s their value rating compared to similar alternatives:

    Are they worth the price?

    Regularly costing around $50, TOZO NC7 are worth the price. If anything, you’re getting capable ANC performance and battery life.

    The sound is on the brighter side (loud, high frequencies), but the overall quality is still great for budget earbuds.

    TOZO NC7 alternatives

    EarFun Air Pro 3

    EarFun Air Pro 3 earbuds on stone

    EarFuns’ produce a smoother sound (after EQ) but with a tad less texture in the treble. Both have 40 feet of indoor Bluetooth range, but the Air Pro 3 have a Low Latency mode and an LC3 audio codec.

    They have the second-best battery duration at around 8 hours per charge but a significantly better ANC reduction, especially in lower frequencies.

    EarFun Air Pro 3 review

    Edifier W240TN

    Edifier W240TN buds and case

    They have similarly impactful bass thanks to dual driver design but a much darker treble response. Both are comfortable and durable, but the Edifier have an IP55 (also dust-resistant) compared to an IPX6.

    Furthermore, W240TN have a stronger passive isolation and ANC than NC7. But, their battery lasts around 6 hours compared to 9 hours in TOZOs.

    Edifier W240TN review

    What’s in the Box?

    TOZO NC7 accessories
    • Edifier TWS1 Pro 2 true wireless earbuds
    • Charging case
    • USB-C charging cable
    • 6 pairs of silicone ear tips, dome & flat head (2xS, 2xM, 2xL)
    • User manual

    Specifications

    Type: True wireless
    Connection: Bluetooth 5.3
    Back design: Closed-back
    Drivers: 7mm dynamic
    Frequency range: 17-20.000Hz
    Impedance: n/a
    Weight: 0.17 ounces (5 grams) per earbud, 1.51 ounces (43 grams) with the case
    Mic & Controls: Yes
    Water resistance: IPX6
    Battery life: 9h + 36h in case
    Charging time: 2h – quick charge – USB-C & Qi wireless
    Active noise cancelling: Yes
    Bluetooth codecs: SBC, AAC
    Wireless range: 40 feet (or 12.2 meters)
    Microphone: Dual ENC microphones

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