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The ONF21 is an open-ear neckband headset that sits outside the ear canal and leaves the ears open to traffic and conversation. It pairs over Bluetooth with APT-X decoding, a built-in microphone and a claimed 4 hours of music or up to 6.5 hours of talk per charge, with 40 hours standby and about 10 meters of range. It is sweatproof and very light, aimed at runners and gym users. The best new price is $44.99 at OdeMobile as of November 6, 2026, and only one store lists it new, so there is no meaningful recent price range to compare against.
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Lowest price we've seen: $44.99 on Nov 6 at OdeMobile. Tracked across 1 store since Nov 6.
Buyers describe it as a working, inexpensive open-ear headset with good sound for the price. The recurring complaint is fit: some owners say it does not adjust to their head or ears well.
• Premium Quality Sports Wireless Headset. Latest technology strengthen the signal 2 times.
• Behind-the-head design eliminates tangles and provides a light, comfortable fit. Easy and fast pairing. Built-in Microphone. Super Lightweight.
• Perfect Sound: High-fidelity stereo music and clear speech, You can begin enjoying Hi-Fi CD quality stereo sound instantly.
• HD SOUND: High bass audio. With APT-X audio decode technology, Powerful audio driver offers balanced audio and crystal sounds.
• Upto 6.5 hours talk time, 4 hours music time. 40 hours standby time. 10 meter range.
• Ultra compact and light as feather. Sweatproof. It easily fits into a pocket or purse.
Product Description
Corded headphones can be extremely irritating when working out, getting caught and pulling the earpiece out! These headphones are the perfect solution, both wireless and a lot more comfortable in the ear. Imagine working out, without having to worry about wires getting caught or having to change to the next song using your phone. Lightweight. Sleek. High bass speakers with crystal clear audio. That's latest Stereo Headset in a nutshell - plenty of comfort, plus just as much quality. With a built-in microphone you can make hands-free calls during workout, in the car, in the office or outside walking with its sound isolating earbuds and high quality built-in microphone. It delivers pure wireless sound that doesn't compromise on audio quality. With aptX technology, music lovers can enjoy the richer listening experience.
Compatibility
Alcatel 1x Evolve, 7, A30 Plus, Allura, Avalon V, Conquest, Dawn, Elevate, 2, Fierce 2, 4, XL, Flint, Go Flip, 3 / Smartflip, 4, V, Idol 4, 4S, 5, 5S, Insight, Jitterbug Smart 2, Joy Tab 2, My Flip 2 4G, Onyx, PIXI CHARM, Pop 3, Astro, ICON 2, Mega, Nova, Star, PulseMix, Quickflip 4044C, REVVL, 2, Streak, Tetra, Tru, Verso
Amazon Fire 7 (2017 Release), (2019 Release), (2022 Release), Kids (2022 Release), Edition (2019 Release), HD 10 (2017 Release), (2019 Release), <a href="/pages/amazon-fi
