What the maker puts in writing
- “Bluetooth 5.4… keeps sound perfectly in sync with the picture, with latency below 40ms”
- “up to 30 meters (98 ft) (100 feet)”
- “up to 40 hours” with a “charging base”
- “optical, AUX, and RCA” inputs on the transmitter
- “protein leather earpads” with “memory foam”
- Title: “3 Audio Modes”
- Catalog weight: 255 g (9 oz) · Reference: JLS-TV966CD-B-NEW-3
Two hundred and fifty-five grams, which is the real difference
This is the only Earbay listing here that publishes a weight, and on a product worn through a film that is the figure that decides everything.
What the shelf publishes:
Holdsound 250 g · this 255 g · Sony RF400,277 g · Sennheiser RS 175,310 g · Sennheiser RS 195,454 g — exactly 1.00 lb.
Two figures here are not headphone weights at all. The Sony RF400 Renewed publishes 1361 g (48 oz) — exactly 3.00 lb — where the identical new listing publishes 277 g (9.8 oz), so the renewed figure is the packed set. And the Sennheiser RS 120-W publishes 695 g (24.5 oz), which for headphones described as “lightweight on-ear” can only be the box with its transmitter and country adapters.
Both $52.99 Earbay listings publish nothing. That is what the seven dollars actually buys: a number.
One caveat — this is over-ear, surrounding the ear. The RS 120-W is the only on-ear product here: it rests on the ear instead, which runs cooler over a long session and isolates less.
Three audio modes, named nowhere
The title claims “3 Audio Modes”. No bullet names them. Not what the three are, not what each changes, not how to switch.
That phrase is the other half of the seven-dollar gap, against two listings from the same maker sharing the same base reference 966 and the same published figures throughout.
What naming them looks like, on this shelf:
Sennheiser RS 120-W, $159.95 — “Three listening profiles - Speech, Music, Neutral”
1Mii, $89.99 — “3 EQ Modes - TV, Movie, and Music”
Sennheiser RS 195, $264.03 — Speech Mode, Music Mode
Sennheiser RS 175, $249.95 — Bass Boost, Surround Sound
A named mode is a claim you can check. A counted one is not.
And the comparison exposes something about the shelf: the RS 175 at $249.95 is the most expensive product here with no speech mode at all, on a shelf sold almost entirely on dialogue clarity.
“No-delay”, and what the bullet actually says
The title says no-delay. The bullet says “below 40ms”, which is the honest version.
Forty milliseconds is a real figure and a good one — roughly the threshold where the eye catches a voice not matching a mouth. It is why five listings here publish it: the three Earbay, the 1Mii, the Holdsound.
It is not zero. The products with the least delay are the three publishing no figure at all: the Sony RF400 at $91.88, $138 and $189.99, whose analog RF link has no buffer to fill.
The Sony pays for it elsewhere. One of its own bullets reads “For Static sound issue, please refer the trouble shooting steps”, and its description tells you to buy a different model if your television is modern. The Sennheiser RS 120-W aims directly at that weakness: “Digital wireless transmission ensures no analog static.”
Protein leather over memory foam
Two materials, two jobs.
Protein leather is a synthetic that is softer and more breathable than ordinary PU, and does not crack like vinyl. Memory foam takes the shape of the head over a few minutes, spreading clamp pressure instead of concentrating it on two points.
On a product whose job is a three-hour film, that combination does more for the experience than any driver specification — and it is published by the Holdsound, the 1Mii and both other Earbay listings.
Three cables, and the one that is missing
Optical, AUX and RCA on the transmitter covers every television era: RCA and the headphone jack for older sets, optical for newer ones.
Which is worth having, because the Sony RF400 at $138 says this in its own description: “designed for older televisions with Stereo Audio connectors or a headphone jack: newer televisions with HDMI or Digital Optical should instead use headphone model WH-L600.”
What is absent is HDMI ARC, and only the Avantree at $159.99 has it here.
There is also a question none of the three Earbay listings addresses: a television has one optical output, and if a soundbar occupies it, nothing is left. The Avantree warns about exactly that — “check whether it is already in use before purchasing” — and offers optical passthrough. The 1Mii offers a bypass mode that keeps the soundbar playing.
What is not published
No driver size, where the Sony RF400 publishes 1.57 inch units.
No frequency response, and no signal-to-noise figure. The Sennheiser RS 195 at $264.03 is the only product on this shelf publishing a measurement: “Analog input: typ. 85 dBA at 1 Vrms, Digital input: > 90 dBA” — with the digital input 5 dB better than the analog.
No volume limit, on a product sold for amplified dialogue.
And a sealed battery, as on ten of the twelve products here. Only the Sennheiser RS 120-W uses cells you can replace — “rechargeable AAA batteries”, named in its parts list as “1.2 V (AAA), NiMH”. It is the one product here that outlives its own battery.
Availability
At the check, the American Amazon store stood at roughly $60.
These numbers are what Keepa carried on the day this page was last built. Stock and prices move without notice.
Prices quoted in this text were read on 4 October 2026. The live price is at the top of the page.
