We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-17 · 6 min read · Independent comparison
If you want maximum battery life at the lowest possible outlay and you don't care about noise cancelling, choose RORSOU B10; if you need active noise cancellation, app-based sound tuning and clearer voice calls, choose Sony WH-CH720.
• RORSOU B10 — biggest strength: 50-hour rated playtime with a 40 mm dynamic driver, Bluetooth 5.3 and multipoint pairing, plus a 3.5 mm cable for wired listening when the battery runs dry.
• RORSOU B10 — biggest trade-off: no noise cancelling at all, a shorter 180-day warranty window, and touch-based volume control that some people find fussy compared with physical buttons.
• Sony WH-CH720 — biggest strength: digital active noise cancelling with 20 adjustable ambient sound levels, the Integrated Processor V1 with DSEE, and voice-focused mics for calls.
• Sony WH-CH720 — biggest trade-off: fewer rated battery hours (35 vs 50), a longer 3-hour charge time, and Bluetooth 5.2 rather than 5.3.
• Buy the RORSOU B10 if you want long listening sessions, wired backup and a simple over-ear headphone for travel, study or commuting on a budget.
• Buy the Sony WH-CH720 if you want to quiet a noisy office, train or plane cabin and you like tweaking EQ and ambient levels in an app.
The B10 is built around one idea: keep going without a charger. RORSOU rates it at up to 50 hours of playtime, and even the battery spec inside the product data lists a 40-hour average life with a 2-hour charge. Compare that with the Sony's 3-hour charge cycle and you can see where the B10's priorities sit. A 40 mm dynamic driver covers a 20 Hz–20 kHz range, which is the standard full-range window, and the tuning is described as bass-forward with crisp mids — the kind of sound signature that suits pop, hip-hop, podcasts and movies on a tablet.
Bluetooth 5.3 is the other headline. It supports pairing with two devices at once and switching between them, so you can jump from a playlist on your phone to a call on your laptop without re-pairing. RORSOU also includes a 3.5 mm jack and an audio cable, which means these are not dead weight when the battery empties — you can plug into a seat-back screen, a desktop or an older device and keep listening.
Who should skip it? Anyone who flies often, works in an open-plan office, or studies in a loud café. The B10 has no noise control of any kind — the spec sheet is explicit about that — so it reduces background noise only through the physical seal of the ear cushions. If blocking out engine drone or chatter matters to you, this is the wrong tool. The 180-day warranty is also shorter than the coverage many buyers expect on a headphone, which is worth weighing against how hard you plan to use them.
Sony WH-CH720: Who It's For
The WH-CH720 is the more technically ambitious headphone of the two. Its centrepiece is digital active noise cancelling built on dual noise sensor technology and Sony's Integrated Processor V1, and through the Sony Headphones Connect app you can dial the ambient sound across 20 levels. That's a genuinely different use case from the B10: instead of simply playing music louder than your surroundings, the WH-CH720 actively reduces what's coming in. On a plane, a train or in a shared office, that's the difference between turning the volume up and actually hearing less noise.
Sound processing is the second pillar. The V1 processor and DSEE work to restore detail lost in compressed streaming audio, and the app's EQ lets you reshape the tuning to taste rather than accepting one fixed sound signature. Sony also lists 360 Reality Audio support, which analyses your ear shape through the app for a spatial mix — a feature aimed at listeners who want an immersive, positioned soundstage rather than a straight stereo presentation.
Call quality gets real attention here too. Precise Voice Pickup Technology, a wind noise reduction structure and beamforming microphones are all aimed at making your voice clearer to the person on the other end. If you spend a chunk of your day on calls — remote work, long-distance family, client meetings — that combination is a practical advantage over a basic built-in mic.
Comfort and battery are solid rather than spectacular: 35 hours with noise cancelling on, a 3-hour charge, and a lightweight ergonomic build rated for all-day wear. Multipoint connection, Swift Pair and Fast Pair, voice control and simple button operation round out the everyday experience.
Who should buy it? In my opinion, the WH-CH720 suits commuters, remote workers and frequent flyers who want noise cancelling and app-level control. Who should skip it? Buyers who want the longest possible runtime between charges, anyone who dislikes app-dependent features, and listeners who just want to press play and not think about EQ curves or ambient levels.
• Best for battery life → RORSOU B10. RORSOU rates it at up to 50 hours, and the data sheet lists a 40-hour average; Sony lists 35 hours with noise cancelling on.
• Best for fast charging → RORSOU B10. A 2-hour charge versus the Sony's 3 hours.
• Best for noise cancelling → Sony WH-CH720. Active noise cancellation with dual noise sensors and 20 ambient levels; the B10 has none.
• Best for call clarity → Sony WH-CH720. Beamforming mics, Precise Voice Pickup Technology and a wind noise reduction structure are purpose-built for voice.
• Best for sound customisation → Sony WH-CH720. App EQ, DSEE processing and 360 Reality Audio support versus the B10's fixed bass-forward tuning.
• Best for wired backup and sharing → RORSOU B10. A 3.5 mm jack, an included audio cable, a sharing function and an 85/94 dB volume limiter.
• Best for Bluetooth generation → RORSOU B10. Bluetooth 5.3 with dual-device pairing versus the Sony's 5.2.
• Best for weight → Sony WH-CH720. Listed at roughly 0.1 kg versus about 0.3 kg for the B10 — noticeable over a long flight.
My Verdict
Yes. RORSOU rates the B10 at up to 50 hours of playtime, with a 40-hour average listed in the specs, and it charges in about 2 hours. Sony lists 35 hours with noise cancelling on and a 3-hour charge.
No. The B10 has no noise control feature at all — it relies on the physical seal of its over-ear cushions. If active noise cancelling matters, the Sony WH-CH720 is the one to pick.
It's designed for both. Sony includes beamforming microphones, Precise Voice Pickup Technology and a wind noise reduction structure specifically to keep your voice clear on calls. The B10 has a built-in mic for hands-free calls, but without those voice-focused extras.
I don't publish prices here, since they change often. Check the current price on Amazon using the button on this page and compare the two listings directly before deciding.
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.