What the maker puts in writing
- “The smallest speakers designed by Bose so the focus can remain on your home entertainment not your speakers”
- “Designed to bring music movies and TV to life with full immersive surround sound”
- “Simply plug the adapters into a power source and wirelessly connect the receivers to the Bose Soundbar and enjoy your entertainment in minutes”
- “Looking for more pulse-pounding impact? Add the Bose Bass Module 700”
- “Standing less than 4 inch tall Both bass modules have a wireless range of 30 feet”
- Description: “Designed to complement a Bose soundbar… Pair them with the Bose bass Module 500 or Bose bass Module 700”
It requires a Bose soundbar, and that is the whole specification
Wirelessly connect the receivers to the Bose Soundbar. And: Designed to complement a Bose soundbar.
Each speaker contains a wireless receiver and needs AC power through an adapter. There is no speaker terminal to wire, and nothing for an AV receiver’s amplifier channel to connect to.
The other five products on this shelf are passive speakers that take speaker cable from any amplifier — Rockville’s Cube publishes 8 ohm, Polk publishes 4 and 8, B&W publishes 8 ohm.
This is a different category of object: an accessory for one manufacturer’s soundbar.
If you own a Bose soundbar, it is the obvious purchase and arguably the only one. If you own anything else, it is not a purchase at all — at any price.
Bullet five describes a product you have not bought
“Standing less than 4 inch tall Both bass modules have a wireless range of 30 feet”
Two things run together. The first half is about these speakers — under four inches tall, which the catalog dimensions support at 3.31 × 3.19 × 3.70 in (84 × 81 × 94 mm).
The second half is about the Bass Module 500 and Bass Module 700, which are not included. Bullet 4 offers the Bass Module 700 as an upgrade; the description mentions both.
So the only wireless range published belongs to an accessory, and the speakers’ own range is never stated — which on a product whose entire function is to sit across the room from a soundbar is the figure you would most want.
Wireless moves the cable problem rather than removing it
What goes away is the speaker cable from the front of the room to the rear. That is the genuinely awkward run — round doorways, under rugs, along baseboard — and not having to make it is a real benefit.
What arrives instead is the need for a power outlet at each rear speaker, because each contains a receiver and an amplifier.
If there is an outlet behind the sofa on each side, the trade is excellent. If there is not, you are running an extension cord instead of a speaker cable — and a power cord is thicker, stiffer and less safe to tuck under a rug than two-core speaker wire.
The passive speakers here need no power at all at the listening position. Rockville’s RockSlim at $64.95 goes further and publishes molded wire grooves so its single thin cable sits flush against the wall.
And at four hundred dollars it publishes no specification
No driver size. Every other listing on this shelf gives one: 3.5 in (Rockville Cube), 4 in (Polk, B&W), 5.25 in (RockSlim, JBL).
No tweeter. Four listings here name one — PEI, Mylar, Terylene, Nautilus tube-loaded.
No frequency response. The RockSlim publishes 100 Hz – 20 kHz, the JBL 100 Hz – 18 kHz, B&W 64 Hz – 23 kHz.
No sensitivity. Only B&W publishes one, at 85 dB — though on a powered speaker sensitivity is less meaningful, since the amplifier is matched to the driver by the maker.
No power output, which is the figure that would apply here in place of sensitivity and impedance. A powered speaker quotes what its own amplifier delivers. This publishes nothing.
No mounting method. Rockville’s Cube publishes 360-degree swivel brackets; Polk publishes screw inserts and keyhole slots for directional firing; JBL includes brackets; B&W has an adjustable tabletop. A surround speaker belongs high on a wall and needs to be aimed down and inward — and this listing says nothing about how it is fixed or whether it can be angled.
No wireless range for the speakers themselves, as above.
What you are paying for
Two things, and they are real.
Size. “The smallest speakers designed by Bose”, under four inches tall, with the whole pair weighing 998 g. Nothing else on this shelf approaches that — the next smallest is Rockville’s Cube at 4.13 inches on a side, and the B&W at 2,300 g for one speaker.
And set-up. “Plug the adapters into a power source and wirelessly connect the receivers… and enjoy your entertainment in minutes.” For somebody who already owns the soundbar, that is a pairing operation rather than a wiring job.
Whether four hundred dollars is the right price for two very small wireless speakers with no published specification is a question the listing gives you no way to answer. What it does make clear is the condition: a Bose soundbar, or nothing.
Prices quoted in this text were read on October 4, 2026. The live price is at the top of the page.
