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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want true wireless earbuds with adaptive noise cancellation and high-resolution Bluetooth audio, choose OnePlus Buds 4; if you need a work headset that pairs to your laptop and phone at once and keeps a mic clear on calls, choose Lenovo Dual Mode.
• OnePlus Buds 4 — biggest strength: a true wireless in-ear design with 11mm dynamic drivers, LHDC 5.0 hi-res audio and Bluetooth 5.4, plus Active Noise Cancellation that switches to Transparency automatically via Adaptive Mode.
• OnePlus Buds 4 — biggest trade-off: it's an earbud, so there's no headband, no boom-style call focus, and no packaged USB receiver for a laptop that fights you over Bluetooth.
• Lenovo Dual Mode — biggest strength: hybrid Active Noise Cancellation with Environmental Noise Cancellation for your voice, dual connectivity via Bluetooth or the included USB-C receiver, and up to 60 hours of playback with ANC off.
• Lenovo Dual Mode — biggest trade-off: it's a 165g on-ear headset built around work calls, so it's bulkier and less pocketable than a pair of buds, and its Bluetooth version and driver tuning are aimed at speech clarity rather than audiophile listening.
• Who each pick is for: OnePlus Buds 4 for commuters, music listeners and phone-first users; Lenovo Dual Mode for hybrid workers, call-heavy jobs and anyone who lives in Teams.
The OnePlus Buds 4 is a proper consumer listening product. The spec sheet tells the story: 11mm dynamic drivers, a 40Hz–20,000Hz frequency range, 18 ohm impedance and 100dB sensitivity. Low impedance like that means these buds are easy to drive from a phone, which is exactly the use case they're built for. Add LHDC 5.0 over Bluetooth 5.4 and you're looking at a design meant to squeeze more detail out of high-bitrate streams than a basic SBC connection allows. If you care about how your music sounds on a walk, this is the more interesting of the two.
Noise cancellation is where the design gets smart rather than just loud. The OnePlus Buds 4 uses Active Noise Cancellation with an Adaptive Mode that switches between ANC and Transparency on its own. In practice, that's the feature you notice on a commute: block the train rumble, then let the platform announcements back in without digging through an app. Touch controls, a secure in-ear fit with silicone tips, and a 33-foot Bluetooth range round out the daily-driver picture.
Battery is worth reading carefully. The charging case holds 530mAh and OnePlus quotes an average life of 530 minutes — roughly nine hours of playback — with a full charge taking about 100 minutes over USB-C. That's a sensible rhythm: charge the case overnight, top the buds up during the day.
Who should skip it? Anyone whose job is back-to-back video meetings. There's no dedicated call control, no packaged USB receiver, and no headband to distribute weight across a full workday. The in-ear fit is comfortable for hours of listening, but it's a listening fit, not a work-shift fit.
The Lenovo Dual Mode is a work headset first, and it's unusually explicit about that. It's Microsoft Teams certified with dedicated call controls, which tells you the whole design brief: clear speech in an open office. Hybrid Active Noise Cancellation handles the noise around you, while Environmental Noise Cancellation works on the other direction — isolating your voice so you sound consistent on calls instead of like you're shouting from a café.
Connectivity is the standout feature. You can connect over Bluetooth, or use the included USB-C Bluetooth audio receiver for a more stable laptop link. It supports two connected devices at once and remembers up to eight paired devices, so hopping between a work laptop and a phone is a switch rather than a re-pair. If you've ever fought a laptop's built-in Bluetooth during a meeting, that receiver is the reason to look here.
Comfort is engineered for long wear. It's a 165g on-ear design with a pressure-relieving headband, rotating earcups and memory foam cushioning, and the earcups are built to move with you. Battery life backs that up: up to 60 hours of playback with ANC off, 36 hours with ANC on, 30 hours of talk time, and a quick charge that gives up to two hours of playback from five minutes of charging. A full charge takes about two hours, and it ships with a protective case.
The 40mm dynamic drivers, 32 ohm impedance and 115dB sensitivity point to an easy-to-drive, speech-forward tuning rather than a bass-heavy music signature. It also has a 3.5mm jack as a wired fallback. Who should skip it? If you mostly listen to music on the move, want something that disappears into a pocket, or want the advanced codec support of a modern earbud, this isn't the pick.
Side-by-Side: Which Should You Choose?
• Best for music listening → OnePlus Buds 4. 11mm drivers, LHDC 5.0 and Bluetooth 5.4 are aimed squarely at audio quality.
• Best for battery life → Lenovo Dual Mode. Up to 60 hours with ANC off and 36 with it on, versus roughly nine hours per charge from the OnePlus Buds 4.
• Best for calls and meetings → Lenovo Dual Mode. Teams certification, dedicated call controls and voice isolation are the whole point here.
• Best for portability → OnePlus Buds 4. A compact in-ear bud and charging case versus a 165g on-ear headset.
• Best for connecting to a laptop and a phone at once → Lenovo Dual Mode. Two simultaneous connections and up to eight stored pairings, plus the USB-C receiver.
• Best for quick top-ups → Lenovo Dual Mode. Five minutes of charging yields up to two hours of playback; the OnePlus Buds 4 needs about 100 minutes for a full charge.
• Best for a phone-first, everyday-carry setup → OnePlus Buds 4. Touch controls, Adaptive Mode and a 33-foot range suit daily pocket life.
If I had to pick one, I'd buy the OnePlus Buds 4 for personal listening and the Lenovo Dual Mode for work — but forced to choose a single pair, I'd take the Lenovo Dual Mode. In my opinion, its dual connectivity, Teams-ready call quality, hybrid ANC and long battery make it the more versatile tool if your day involves meetings, travel and switching between devices. The OnePlus Buds 4 is the better music product and the nicer object to carry; the Lenovo Dual Mode is the better workhorse. Decide which of those two describes your week, then check the current price on Amazon before you commit.
what is anc wireless headphones
ANC stands for Active Noise Cancellation — the headphones use electronics and microphones to cancel out surrounding noise rather than just blocking it physically. Both products here include it: the OnePlus Buds 4 with Active Noise Cancellation plus an Adaptive Mode, and the Lenovo Dual Mode with Hybrid Active Noise Cancellation.
what does anc mean on bluetooth headphones
On Bluetooth headphones it means the same thing: built-in circuitry listens to ambient sound and generates a canceling signal to reduce it. The Lenovo Dual Mode pairs its hybrid ANC with Environmental Noise Cancellation for your voice, while the OnePlus Buds 4 pairs ANC with a Transparency mode you can switch into.
what is anc on bluetooth headphones
It's a noise-control feature that works over the wireless connection without needing any extra accessory. Practically, it's what lets you cut engine drone, office chatter or café noise — the OnePlus Buds 4 handles this adaptively, and the Lenovo Dual Mode targets busy offices, cafés and travel.
what is the best anc headphones
There's no single answer — it depends on whether you want earbuds or a headset. In my opinion, the OnePlus Buds 4 is the better pick for music on the move, while the Lenovo Dual Mode is the better pick for work calls, thanks to Teams certification, dual connectivity and up to 36 hours of playback with ANC on.
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See also: Sennheiser Sennehiser ACCENTUM vs Lenovo Dual Mode, OnePlus Buds Pro 3 vs Google Pixel Buds Pro: Ear Buds, Yworlln NE76 vs New Bee 2: Wireless Travel Headphones