CMF BY NOTHING Buds 2a are my pick for lhdc earbuds under 2000 and for a big head, thanks to ANC, useful app controls, and a compact charging case.
CMF BY NOTHING Buds 2a are my pick for lhdc earbuds under 2000 and for a big head, thanks to ANC, useful app controls, and a compact charging case.
Sunffice is the runner-up if you want an open, single-ear fit that leaves your ear canal uncovered.
lhdc earbuds under 2000 at a Glance
• CMF BY NOTHING Buds 2a — best for everyday listening and calls; pick this if you want adjustable ANC, three included ear-tip sizes, and up to 35.5 hours with the case.
• Sunffice Single Open Ear — best for one-ear listening during calls or activity; pick this if you want an open fit and up to 16 hours of stated continuous use.
• Sunffice Open Ear Headphone — best for long listening while staying aware of your surroundings; pick this if you want a rotating ear hook and up to 28 hours of music playback.
• CMF BY NOTHING Buds 2a — best for a second color option with the same core features; pick this if you want the dark-grey version of the ANC earbuds.
The light-grey CMF BY NOTHING Buds 2a are in-ear wireless earbuds with 12.4 mm dynamic drivers, Bluetooth 5.4, and active noise cancellation. They are the strongest all-round fit in this group for someone who wants a conventional pair for music, calls, commuting, and daily listening. The included small, medium, and large tips give you a choice of fit, though they cannot guarantee comfort for every ear.
For everyday use, the 42dB ANC specification and adjustable ANC settings point to a more controlled listening experience in common noisy settings. The app also offers EQ profiles, transparency mode, dual-device connectivity, a find-earbuds function, and a low-lag gaming mode. Four microphones with call-focused noise reduction features are intended to help keep conversations clearer, while Bluetooth 5.4 supports wireless use within a stated 10-meter range.
Battery life is listed as up to eight hours from the earbuds and 35.5 hours with the case. A quick-charge feature is described as providing up to two hours of playback after five minutes of charging. IP54 protection makes these more suitable for routine exposure to dust and splashes than an unprotected earbud, but the in-ear design is the key trade-off: it blocks more of the ear canal than either open-ear Sunffice option.
How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-11 · 7 min read · Independent comparison
This Sunffice model is a single open-ear earpiece for the left ear, not a two-ear set. Its suspended, earhook-style fit leaves the ear canal uncovered. That can suit someone who wants to hear nearby sounds while taking calls, listening to audio at work, or staying alert during a walk. The package contains one earpiece, so it is not the choice for stereo listening through a matching pair.
The product lists a 16 mm dynamic driver and Bluetooth 5.2, with compatibility described for phones, laptops, and tablets. The built-in microphone and noise-cancellation feature are aimed at calls, while touch controls handle basic operation. Its stated wireless range is about 10 meters. For a person who dislikes the enclosed feeling of in-ear buds, the open design is the main draw; it also avoids choosing tips for the ear canal.
Battery details need a little care: the feature information gives up to 16 hours of continuous calls and music, while another description refers to 16 hours in standby and a shorter continuous-call figure. I would not treat standby time as listening time. The listed charging time is one hour, so this is a simpler battery proposition than the longer-playback Sunffice model below.
The trade-off is its one-sided, left-ear-only design and the lack of ANC as a clearly described everyday listening system. It may make sense for hands-free calls or single-ear use, but it is less versatile for music than a pair of earbuds. For shoppers searching for a kids headset for big head, this is not a conventional adjustable headset: there is no headband, and the sheet does not provide fit dimensions or a child-specific fit claim.
This is another single-ear Sunffice earpiece, but its hook can rotate for left- or right-ear wear. It sits outside the ear canal, keeping the ear more open to surrounding sounds. That makes it a practical style to consider for calls, walking, or outdoor activities where hearing nearby conversation and environmental sound matters. The package includes one earpiece rather than a stereo pair.
Bluetooth 5.4 and a stated 10-meter range provide the wireless connection. The product lists touch controls and a noise-canceling microphone for calls. Its IPX5 rating is specified for resistance to sweat and rain, which makes the design more suitable for workouts or wet-weather use than the other Sunffice model’s stated sweat-proof construction. The rotating hook adds flexibility in how it is worn, but the sheet does not give a range of adjustment or sizing details.
The main compromise is also the central design choice. One earpiece will not provide the same two-ear listening experience as the CMF pair, and an open fit is not intended to isolate you from surrounding sound. I’d consider it for long calls or outdoor listening, but not if you want immersive listening or dependable noise reduction for a commute.
CMF BY NOTHING Buds 2a
The dark-grey CMF BY NOTHING Buds 2a have the same core setup as the light-grey version: 12.4 mm dynamic drivers, Bluetooth 5.4, ANC, three included tip sizes, app-based EQ and ANC controls, and a charging case. The meaningful difference in the supplied information is the color. In practical terms, the two versions suit the same kind of buyer rather than serving different listening needs.
Their feature set covers routine calls and music, with four microphones, call-noise features, and a transparency mode alongside ANC. The app’s dual-device connectivity may be useful if you switch between a phone and another device. Battery life is listed as up to eight hours from the earbuds and 35.5 hours with the case, with a quick-charge claim of up to two hours of playback from five minutes of charging.
As with the light-grey pair, the in-ear fit is the main consideration. The included tip sizes offer options, but neither model provides head-size measurements or a guarantee of fit. For a big head, these earbuds avoid a headband altogether; the relevant fit question is how comfortably they sit in your ears. I’d choose the dark-grey version if that color is your preference, not because it adds a distinct feature.
We compared the listed design, connection, battery, call, and listening features for the four entries.
The ranking is our independent editorial opinion based on those specifications and the use cases they suggest. No brand paid for placement.
The product information provided does not list LHDC support for any of these models. Bluetooth 5.4 or 5.2 alone does not establish that a headphone supports the LHDC codec.
None is an over-ear headset with a headband, so head circumference is not the main fit factor. I’d start with the CMF Buds 2a for ANC and included tip sizes, or choose an open-ear Sunffice earpiece if keeping the ear canal uncovered matters more.
The Sunffice Open Ear Headphone lists up to 28 hours of music playback from one earpiece. The CMF Buds 2a list up to eight hours per charge and up to 35.5 hours with the case, so those figures describe different use patterns.
No. Each Sunffice product is described as a single-ear earpiece. The first model is for the left ear; the other has a rotating hook for either ear.
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