How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want long battery life, a neckband that stays put during workouts, and TV-friendly low-latency pairing with Avantree transmitters, choose Avantree Neckband Headphones Earbuds; if you need a single-ear Bluetooth headset for all-day hands-free calling with dual-mic noise cancelling, choose MQQC S525.
• Avantree's biggest strength: up to 20 hours of play/talk time, a 24–28 g neckband that hangs around your neck instead of in a pocket, and magnetic earbuds that snap together so the wires stay tangle-free.
• Avantree's biggest trade-off: it's built around a specific TV setup — for older TVs without Bluetooth you need a compatible Avantree transmitter, and the NB16 only pairs with certain transmitter models, not every one in the lineup.
• MQQC S525's biggest strength: a true single-ear ear-hook headset with dual built-in mics and CVC8.0 noise reduction, Bluetooth 5.1, and up to 16 hours of continuous calls on a 2.5-hour charge.
• MQQC S525's biggest trade-off: it's a one-ear monaural headset, not a stereo pair — fine for calls, meetings and podcasts, less ideal if you want immersive music on both sides.
• Pick Avantree if you want stereo sound for music, gym sessions and TV watching without audio lag.
• Pick MQQC S525 if your priority is reliable, clear hands-free calling all day long, including while driving.
The Avantree NB16 is a neckband-style set of in-ear earbuds. Instead of two loose buds, you get a flexible band that rests on your neck with a flex-form cable and a magnetic system that snaps the earbuds together when you're not using them. In practice, that means you can pull them out, take a call, and let them dangle without worrying about a tangled mess or losing one bud. The inline remote handles volume and calls, and Avantree ships multiple ear tip and wingtip sizes plus two ear hook sizes, so you can dial in a fit that doesn't slip during a run.
Battery is the headline number here: up to 20 hours of continuous talk or music on a roughly 2-hour charge. For someone who commutes, works out, and then watches TV in the evening, that's a set you charge occasionally rather than nightly. The 32-ohm dynamic drivers cover a 20 Hz–20 kHz range, which is the standard full-range spec you'd expect for music and voice. Weight is listed at 24 g (with the wider listing noting 28 g) — light enough that the neckband essentially disappears.
The TV angle is where Avantree gets specific. These earbuds pair directly with Bluetooth-enabled smart TVs. For older TVs with only optical or AUX outputs, you need a compatible Avantree Bluetooth transmitter — Oasis, Oasis Plus, or the Audikast series (excluding Audikast 3). Used with Avantree's fast-stream transmitters, audio delay is virtually eliminated, and you can run them as a second headphone on an HT4186 set to stream to two earbuds at once with no lag.
Buy it if: you want stereo sound for music and workouts, a neckband you don't have to babysit, long battery life, and low-latency TV audio within the Avantree ecosystem. The 2-year warranty is a plus.
Skip it if: you mainly need a single-ear headset for phone calls, you own a newer 418P-3 / HT4186-Q / HT41866-Q transmitter (that combo needs the NB16-Q model instead), or you don't want to think about transmitter compatibility at all.
The MQQC S525 is a completely different animal: a single-ear, ear-hook Bluetooth headset. One bud, one hook that wraps over your ear, and a lightweight body — the listing puts it at 0.3 oz (about 0.05 kg). That form factor exists for one reason: you wear it for hours on end, mostly for talking, and you want your other ear open to the world.
The calling features are the point. There are two built-in HD microphones paired with CVC8.0 noise reduction, which is designed to strip out background noise so your voice comes through clearly even in a noisy place. Bluetooth 5.1 gives fast, stable pairing with iOS and Android phones, tablets, laptops and MP3 players at up to 33 feet, and it can hold connections to two Bluetooth devices at once — handy if you're switching between a laptop and a phone. Buttons are reachable without looking, and you can trigger Siri or another voice assistant for hands-free dialing.
Battery is rated at up to 16 hours of continuous calls, up to 25 hours of play time, and a claimed 320 hours (about 13.5 days) of standby on a 150 mAh battery, charged in about 2.5 hours. The enclosure uses a carbon fiber material, and the package includes three items. Warranty is listed as 1 year.
Buy it if: you take a lot of calls, drive frequently, sit in online meetings, or want a headset that's genuinely hands-free and stays on one ear all day. The hybrid noise cancellation and push-button/voice controls suit that routine well.
Skip it if: you want stereo music in both ears, you're buying primarily for TV or movie watching, or you prefer a neckband you can drop around your neck rather than a hook behind your ear.
• Best for battery life → Avantree Neckband Headphones Earbuds. Up to 20 hours of talk/music beats the S525's up to 16 hours of calls.
• Best for hands-free calling → MQQC S525. Dual mics plus CVC8.0 noise reduction and voice-assistant support are exactly what a call-first headset should have.
• Best for TV and movies → Avantree Neckband Headphones Earbuds, provided you're within its transmitter ecosystem; the S525 isn't positioned for low-latency TV audio.
• Best for workouts and gym → Avantree Neckband Headphones Earbuds. Magnetic earbuds, wingtips, ear hooks and a flex-form neckband are built for movement; a single ear hook is not a stereo workout setup.
• Best for music in both ears → Avantree Neckband Headphones Earbuds. The S525 is a monaural headset, so stereo listening isn't its job.
• Best for driving and meetings → MQQC S525. One open ear, quick buttons, and long call runtime fit that use case better.
• Best for Bluetooth version and pairing range → MQQC S525. Bluetooth 5.1 and up to 33 feet, with dual-device connection, versus Bluetooth 4.1 and 10 meters on the Avantree.
• Best for fitting options out of the box → Avantree Neckband Headphones Earbuds. Multiple ear tip and wingtip sizes plus two ear hook sizes give you more ways to get a secure fit.
In my opinion, the right pick comes down to what you actually do with a headset. If your day is calls — driving, meetings, quick conversations — I'd buy the MQQC S525, because dual-mic CVC8.0 noise cancelling, Bluetooth 5.1, dual-device pairing and up to 16 hours of talk time are aimed squarely at that job. If your day is music, gym sessions and TV at night, I'd buy the Avantree Neckband Headphones Earbuds: 20 hours of playback, a comfortable 24–28 g neckband, magnetic tangle-free earbuds, and virtually lag-free TV audio when paired with a compatible Avantree transmitter. Neither is a universal winner — they're built for two different routines.
Both handle calls, but they're built differently. The S525 is a dedicated call headset with two microphones and CVC8.0 noise reduction, which is aimed at clarity in noisy places. The Avantree uses an inline remote for calls and focuses more on music and TV audio. For call-heavy days, the S525 is the more purpose-built choice.
Avantree rates up to 20 hours of continuous talk/music, with a 2-hour charge time. MQQC rates up to 16 hours of talk time, up to 25 hours of play time, and roughly 13.5 days of standby, with a 2.5-hour charge. So Avantree wins on continuous use; the S525 counters with very long standby.
Not any TV. It connects directly to Bluetooth-enabled smart TVs. For older TVs with optical or AUX outputs, you need a compatible Avantree transmitter — Oasis, Oasis Plus, or the Audikast series (excluding Audikast 3). If you own a newer 418P-3, HT4186-Q or HT41866-Q transmitter, you'd need the NB16-Q model instead.
This page doesn't list prices, and pricing changes often — check the current price on Amazon using the button on this page for both. On features alone, the S525 is the better value for a call-first buyer, while the Avantree gives you more for music, workouts and TV audio.
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.