We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-23 · 7 min read · Independent comparison
If you want featherweight in-ear buds with hybrid ANC, spatial audio and a pocketable case, choose CMF BY NOTHING Buds 2; if you need marathon 90-hour over-ear comfort, wired backup and dual-device switching, choose TOZO HT3.
• CMF BY NOTHING Buds 2 — biggest strength: 48dB hybrid ANC with an Environmental Adaptive mode, plus Dirac Opteo tuning on an 11mm driver and up to 55 hours total with the case.
• CMF BY NOTHING Buds 2 — biggest trade-off: They're in-ear buds, so you're dependent on tip fit for both comfort and noise cancelling, and the plastic build is light rather than luxurious.
• TOZO HT3 — biggest strength: Up to 90 hours of playback, over-ear cups that don't sit inside your ear canal, and a 3.5mm jack so they work when the battery doesn't matter.
• TOZO HT3 — biggest trade-off: They're a full-size headphone — bulkier to carry, warmer on the ears over long sessions, and the ANC approach is adaptive rather than a headline decibel figure.
• Pick CMF BY NOTHING Buds 2 if you want something you forget you're wearing, commute with one bud in, and care about voice calls and gaming latency.
• Pick TOZO HT3 if you want one pair for the whole workweek — flights, desk, wired laptop calls — without hunting for a charger.
The Buds 2 are built around blocking noise in a very small package. CMF rates the hybrid ANC at 48dB across a 5200Hz range, and the Environmental Adaptive mode re-tunes the reduction in real time as your surroundings change. That's the kind of feature that matters on a train platform or a busy street: you're not locked into one fixed level of cancellation. The 11mm PMI driver paired with Dirac Opteo tuning is aimed at punchy bass with clean vocal separation, and there's a 360° spatial audio mode using an HRTF-based algorithm for films and games.
Battery is the other headline. CMF claims up to 13.5 hours on a single charge and 55 hours total with the case, and a 10-minute top-up is said to return 7.5 hours — a genuinely useful number if you routinely forget to charge. The case charges fully in roughly 62 minutes. IP55 water and dust resistance means sweat and rain aren't a panic moment, and the touch controls handle playback and ANC without pulling out your phone.
Who should buy it: commuters, gym-goers, gamers and anyone who wants noise cancelling they can carry in a coin pocket. Who should skip it: if you dislike things inside your ear canal, want a wired fallback, or need to stay connected to a laptop and phone simultaneously.
TOZO HT3: Who It's For
The HT3 is a different category entirely — an over-ear headphone with hybrid active noise cancelling and adaptive smart detection that adjusts cancellation as you move between environments. TOZO describes it as targeting city, cabin and office noise, which tells you the intended use case: travel and work, not the gym. The audio side uses a DLC diaphragm with dual drivers for fast response, clear highs and deep bass, and there's expanded sound positioning for a wider sense of depth and direction in movies and games.
The battery figure is the standout: up to 90 hours of average life, with a charge time listed at just 10 minutes. I'd treat that as the headline spec for anyone who travels — it's the difference between charging nightly and charging weekly. Connectivity is Bluetooth 6, and dual-device connection lets you stay paired to a phone and a laptop at once, switching audio without re-pairing. There's also a 3.5mm jack and an included AUX cable, so the HT3 works passively when you'd rather not think about battery at all.
Controls are unusually flexible: app, touch and voice. That voice layer includes an AI voice assistant, plus smart translation and hands-free help — the kind of thing that's genuinely handy on a trip. The app carries 32 EQ presets, over 100 white noise tracks and a large shared EQ library, so personalization goes well beyond a bass/treble slider. Five built-in microphones handle calls with voice isolation and background suppression. The set folds and ships with a case, a USB-C cable and the analog cable.
Who should buy it: frequent flyers, remote workers, students and anyone who wants one headphone for long sessions. Who should skip it: if you want something invisible in a pocket, run with earbuds, or prefer the sealed feel of in-ear tips.
• Best for total battery life → TOZO HT3. Up to 90 hours against 55 hours total for the Buds 2, and a 10-minute charge versus 62 minutes for a full case charge.
• Best for single-charge stamina → CMF BY NOTHING Buds 2. 13.5 hours in the buds themselves is a strong number for true wireless.
• Best for measured noise cancelling → CMF BY NOTHING Buds 2. 48dB hybrid ANC with a stated 5200Hz range and real-time adaptation is the more specific spec sheet.
• Best for calls on the move → CMF BY NOTHING Buds 2. Six microphones with dedicated wind-noise reduction is purpose-built for outdoor voice pickup.
• Best for gaming and movies → TOZO HT3. Dual drivers, expanded positioning and near-instant audio sync suit competitive play; the Buds 2 counter with a Low Lag Mode and HRTF spatial audio.
• Best for multi-device work → TOZO HT3. Dual-device connection to phone and laptop is built in; the Buds 2 don't list it.
• Best for workouts and rain → CMF BY NOTHING Buds 2. IP55 water and dust resistance, versus no IP rating listed for the HT3.
• Best for wired fallback → TOZO HT3. The 3.5mm jack and included AUX cable mean they work with zero battery.
In my opinion, the right answer depends entirely on where you'll use them. If your listening happens on the move — commuting, training, walking, taking calls outdoors — I'd buy the CMF BY NOTHING Buds 2. The IP55 rating, six-mic call setup, 13.5-hour single-charge life and pocketable case make it the more versatile everyday object, and the 48dB hybrid ANC with adaptive adjustment is the more concrete noise-cancelling claim.
If your listening happens in long seated blocks — flights, office days, study sessions, editing — I'd buy the TOZO HT3. Up to 90 hours, dual-device switching, a wired option and app-level EQ depth make it the better single-headphone solution for someone who doesn't want to think about charging. Check the current price on Amazon for both before you commit, since that's the one variable that can flip a close call.
Not necessarily — they're different designs. CMF specifies 48dB hybrid ANC with a 5200Hz range and real-time adaptation. TOZO specifies hybrid ANC with adaptive smart detection but no decibel figure. In-ear buds also seal the canal, which helps. I'd give the edge to the Buds 2 on paper.
The TOZO HT3 wins clearly. It's rated at up to 90 hours of average life with a 10-minute charge time. The Buds 2 give up to 13.5 hours per charge and 55 hours total with the case. If you hate charging, the HT3 is the pick.
Yes. It has a 3.5mm headphone jack and ships with an AUX 3.5mm analog audio cable, so you can listen without Bluetooth or battery. The CMF Buds 2 are wireless-only — there's no jack.
The CMF BY NOTHING Buds 2. They carry an IP55 water and dust resistance rating and are listed under a sport theme. The TOZO HT3 is an over-ear headphone with no IP rating listed, so sweat and rain are a real risk.
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