How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a wired, over-ear set of noise-cancelling headphones with a huge single-charge runtime and a fold-flat travel design, choose Audio Technica ATH-ANC7B; if you need compact true-wireless earbuds with hybrid noise cancelling, a transparency mode, app-based sound tuning and a charging case, choose TOZO NC9.
• Audio Technica ATH-ANC7B — biggest strength: large 40 mm dynamic drivers, a 20 Hz–20 kHz range and QuietPoint circuitry that the spec sheet says reduces environmental noise by up to 90%, all in a fold-flat over-ear body with a rated 40 hours of battery life.
• Audio Technica ATH-ANC7B — biggest trade-off: it's a wired-only design, so you're tethered to a 3.5 mm jack and there's no Bluetooth audio streaming or app to tune the sound.
• TOZO NC9 — biggest strength: three-layer hybrid active noise cancellation plus a transparency mode, dual noise-cancelling microphones for calls, IPX6 water resistance and 32 preset EQ modes through the TOZO app.
• TOZO NC9 — biggest trade-off: the 9 mm drivers and in-ear fit mean a smaller, more intimate soundstage than a full-size over-ear can produce, and the per-charge playtime drops from about 13 hours to roughly 7 hours once ANC is switched on.
• Choose the ATH-ANC7B if you want an over-ear listening session at a desk, on a plane or in a quiet room and don't mind a cable.
• Choose the TOZO NC9 if you want something pocketable for commuting, workouts and calls, and you value wireless freedom over driver size.
The ATH-ANC7B is the old-school answer to noise cancelling: a full-size, closed-back over-ear headphone that runs on a single AAA battery and is rated for about 40 hours of use. The QuietPoint circuitry is claimed to cut environmental noise by roughly 90%, and the 40 mm neodymium drivers are sized to deliver impactful bass and extended treble. The frequency range is a standard 20 Hz–20 kHz, and the impedance sits at 300 ohm — a figure worth knowing, because it tells you these are designed to be driven by a proper source rather than treated as a throwaway accessory.
What it does best is the stuff over-ears still win at. Big drivers, cushioned earcups that fit over the ear, and a fold-flat frame that packs into the included carrying case. Audio-Technica also throws in the travel kit that matters on a plane: a 1/4-inch adapter and a dedicated airline adapter for in-flight entertainment systems. There are no external modules to clip on or charge separately — the electronics are fully integrated, and media, call and volume controls live on the remote.
Buy it if you want one pair of headphones for long-haul flights, hotel rooms and desk work, where a cable is a non-issue and battery anxiety is. Skip it if you need wireless audio, a transparency mode, water resistance or app-based EQ — none of that is here. Also skip it if you mostly listen on a phone with no headphone jack and no dongle, because wired is the whole point.
The TOZO NC9 takes the opposite approach: two tiny buds, a charging case and software. The noise cancelling is a three-layer hybrid system — an outward-facing mic samples ambient sound, an inward-facing mic listens inside the ear canal, and the ear caps themselves physically block a large share of noise before the electronics even engage. There's also a transparency mode, which pipes outside sound in so you can hear a gate announcement or a train platform call without pulling the buds out.
The call side is handled by a dual noise-cancelling microphone setup with internal and external mics working to isolate your voice. For listening, you get 9 mm dynamic drivers with a 14 Hz–20 kHz range, 32 ohm impedance, 101 dB sensitivity and a rated 60 ms latency — low enough that lip-sync on video is generally not a problem. Bluetooth 5.3 gives you a rated range of about 15 meters, and pairing is a one-step affair: pull the buds from the case and connect on your phone.
Battery is where the case earns its keep. Roughly 13 hours per charge, about 7 hours with ANC on, and up to 40 hours total from the 500 mAh case, which recharges in about two hours over USB-C and supports wireless charging. The TOZO app opens up 32 preset EQ modes, so you can push bass or flatten the curve to taste. IPX6 means sweat and rain are fine.
Buy the NC9 if you want earbuds for commuting, gym sessions and calls, and you like the idea of tuning the sound yourself. Skip it if you want the sense of space and over-ear comfort that only a full-size headphone delivers, or if you'd rather not manage a charging case at all.
• Best for battery life on a single charge → Audio Technica ATH-ANC7B. Its rated 40 hours is nearly triple the NC9's 13 hours per charge, and it doesn't need a case to get there.
• Best for total wireless playtime → TOZO NC9. Roughly 40 hours combined from the case, which is the number that matters if you never want to think about charging.
• Best for flights and in-flight entertainment → Audio Technica ATH-ANC7B. The airline adapter and 1/4-inch adapter are included specifically for this.
• Best for commuting and workouts → TOZO NC9. IPX6 water resistance and a pocketable case beat a wired over-ear for movement.
• Best for calls → TOZO NC9. The dual noise-cancelling microphone array is built for voice pickup; the ATH-ANC7B offers call control but is fundamentally a listening headphone.
• Best for hearing your surroundings on purpose → TOZO NC9. Its transparency mode is a feature the ATH-ANC7B simply doesn't have.
• Best for sound tuning → TOZO NC9. 32 preset EQ modes via the app versus no EQ at all on the ATH-ANC7B.
• Best for big-driver, over-ear listening → Audio Technica ATH-ANC7B. 40 mm drivers against 9 mm is a real physical difference in how much air gets moved.
• Best for a cable-free setup with no dongles → TOZO NC9. Bluetooth 5.3 with a 15-meter rated range versus a 3.5 mm jack.
If I had to pick one, I'd buy the TOZO NC9. In my opinion it covers more of what most people actually do with headphones in 2026 — wireless, calls, commuting, sweat, app-tuned sound and a case that keeps it charged. The ATH-ANC7B is the better choice only if your use case is specifically over-ear, cabled listening at a desk or on a plane, and you value that 40-hour runtime and the included airline adapter. If that's you, take the Audio-Technica; otherwise the NC9 is the more flexible everyday pick. Either way, check the current price on Amazon before deciding.
They attack noise differently. The ATH-ANC7B uses QuietPoint circuitry claimed to reduce environmental noise by about 90% in an over-ear shell that also physically blocks sound. The NC9 layers outward and inward microphones with ear caps for passive blocking. For low-frequency drone on a plane, an over-ear seal usually has the edge; for convenience and transparency, the NC9 wins.
No. The spec sheet lists wired 3.5 mm connectivity, and the design relies on integrated electronics with no external modules. If you need Bluetooth, the TOZO NC9's Bluetooth 5.3 is the wireless option here.
The ATH-ANC7B is rated for about 40 hours on a single AAA battery. The TOZO NC9 is rated for roughly 13 hours per charge, about 7 hours with ANC on, and up to 40 hours total with the charging case.
They're rated IPX6 for water resistance, which covers sweat and rain, and the in-ear fit plus charging case make them easy to carry. The ATH-ANC7B is a fold-flat over-ear with no water-resistance rating, so it's better suited to seated listening.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.
See also: CNBRO Sleep Earbuds vs ZXQ Q1s: Bluetooth Headphones for, Boean Earbuds vs 1Mii Y8+: Headphones with Deep Bass, Baseus Bass BC1 vs JL&MI Neckband: Headphones for Commute, TOU-BEGUIN Charging Earphone Case vs Aircawin Bose QuietComfort Earbud