How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-02 · 6 min read · Independent comparison
• Callez Headset — biggest strength: CVC8.0 dual-mic noise cancelling with DSP plus aptX HD, purpose-built for clear conversation on calls.
• Callez Headset — biggest trade-off: It is a single in-ear earpiece with an 8-hour talk time, so it is not designed for all-day music listening.
• WAVEFUN Neckband — biggest strength: Up to 30 hours of listening time from a 200mAh battery and a low-power audio SoC, paired with a 10mm titanium-plated diaphragm driver.
• WAVEFUN Neckband — biggest trade-off: Sound isolation rather than active noise cancellation, and a neckband form factor some people find less convenient than a single earpiece.
• Who each pick is for: Callez Headset suits truckers, office workers and anyone on calls all day; WAVEFUN Neckband suits commuters, casual listeners and people who want music and calls from one flexible neckband.
The Callez Headset (model C01) is a Bluetooth 5.0 earpiece with a very specific job: making your voice sound clear on the other end of a call. The headline feature is CVC8.0 dual-mic noise cancelling combined with Digital Signal Processing, which is the tech stack responsible for filtering background noise and smoothing out speech. Qualcomm aptX HD is on board too, so supported audio gets a cleaner, more natural rendering rather than the compressed, thin sound you get from basic Bluetooth codecs. For a headset this size, that is a genuinely useful pairing.
Battery life is aimed at the workday rather than the whole day. Callez rates the C01 at 8 hours of continuous talking and 16 hours of music playback on a 1.5-hour charge, with 8 days of standby. That covers a full shift of calls comfortably, but if you are the type who never takes the thing off, you will be reaching for the Type-C cable most evenings. The earpiece is super light at 16.74 grams, fits either ear, and the boom mic rotates to whatever angle you prefer — small details that matter when you wear something for hours.
Buy the Callez Headset if your priority is call clarity, hands-free control and a featherweight single earpiece. It supports Siri and Google Assistant, lets you answer and end calls, adjust volume, mute during calls on cell phones, and even announces incoming numbers. It also pairs to two devices at once and works across iOS, Android, tablets, laptops and PCs within a 33ft range. Skip it if music is your main event or you want something that disappears around your neck — a single earpiece with 16 hours of playback is simply not built for that. Callez backs it with a 45-day money-back window and a 24-month warranty.
The WAVEFUN Neckband — sold as the Flex 3 — takes the opposite approach. Instead of one earpiece, you get a flexible Nitinol neckband with magnetic earbuds that coil up tangle-free into a pocket or bag. That magnetic design is the kind of thing you only appreciate after living with wired earbuds that turn into a knot every time you put them away. The band sits around your neck when you are between songs or calls, which is a genuinely different way to carry audio compared with a single in-ear unit.
Audio is where the Flex 3 makes its case. It uses a 10mm titanium-plated diaphragm driver and an internal 24-bit end-to-end audio pipeline, with aptX HD and aptX delivering consistent, low-latency streaming over Bluetooth. The 10mm driver size and the 16-ohm impedance point to a design meant to drive easily from a phone while still producing rich, precise bass and clean stereo separation. Combined with that low-power 6mA audio SoC and 200mAh battery, WAVEFUN rates up to 30 hours of listening per charge, recharging in about an hour. For commuters, gym-goers and anyone who hates charging, that is the number that matters most.
Buy the WAVEFUN Neckband if you want long listening sessions, deep bass and a form factor that stays put around your neck. It connects wirelessly over Bluetooth with a 10-meter range and uses button controls for volume, with sound isolation rather than active noise cancellation. Skip it if you need active noise cancelling for loud environments — the Flex 3 isolates passively, it does not cancel — or if you specifically want a boom mic that sits near your mouth for calls. Its warranty runs 1 year, shorter than the Callez coverage.
• Best for call clarity → Callez Headset. CVC8.0 dual-mic noise cancelling with DSP and a rotatable boom mic are built for voice.
• Best for battery life → WAVEFUN Neckband. Up to 30 hours of listening versus 8 hours of talk time on the Callez.
• Best for music quality → WAVEFUN Neckband. A 10mm titanium-plated diaphragm, 16-ohm impedance and a 24-bit pipeline favor music playback.
• Best for all-day work calls → Callez Headset. 8 hours of continuous talking covers a full shift, and it pairs to two devices at once.
• Best for portability → WAVEFUN Neckband. Magnetic earbuds coil into a pocket, though it is a bigger object than a single earpiece.
• Best for hands-free voice assistants → Callez Headset. Siri and Google Assistant support, mute during calls, and incoming-number announcements.
• Best for noisy environments → Callez Headset. Active noise cancellation on the mic side plus CVC8.0 beats passive isolation for calls.
• Best for charging speed → WAVEFUN Neckband. Roughly 1 hour versus 1.5 hours for the Callez.
In my opinion, the WAVEFUN Neckband is the better buy for most people, because 30 hours of playback, aptX HD through a 24-bit pipeline and a 10mm titanium driver cover both music and calls in one device. But if your day is defined by phone conversations — driving, dispatching, taking client calls — I would pick the Callez Headset instead. Its CVC8.0 dual-mic noise cancelling, boom mic and assistant controls are purpose-built for exactly that, and the 24-month warranty is the longer of the two. Match the tool to the job.
which earbuds support aptx hd
Both do. The Callez Headset lists Qualcomm aptX HD for clear audio and natural sound, and the WAVEFUN Neckband lists aptX HD and aptX for consistent, low-latency streaming. Just confirm your phone supports aptX HD to get the full benefit.
For listening, yes — WAVEFUN rates up to 30 hours per charge from a 200mAh battery. The Callez is rated at 8 hours of talk time and 16 hours of music playback, which is plenty for calls but shorter for all-day music.
It has CVC8.0 dual-mic noise cancelling with DSP, which targets call clarity. The WAVEFUN Neckband uses sound isolation instead, so it blocks some ambient noise passively but does not cancel it actively.
For voice, I would lean Callez. Its rotatable boom mic, dual-mic CVC8.0 processing, mute button and assistant support are aimed squarely at calls. The WAVEFUN handles calls fine but is tuned more toward music listening.
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.
See also: P PUPGSIS Gaming Microphone vs Zosvoses QC35, ASKUBSKU 3.5mm vs Sidpro Earbuds: Corded Headphones, COMSOON AUX vs Xmenha Ear Buds Invisible, iClever HS20 vs Calmbee Hybrid Active Noise: Headphones with