This looks like a Braun product from an alternate universe, but it was actually designed by Japanese ID firm Propellor Design.
Designed for the elderly and hard of hearing, it’s a wireless TV speaker for those who have trouble hearing the television. The user plugs a stick-style transmitter into the TV’s USB port, then sound is wirelessly beamed to the device; it also allows you to plug headphones into it, without needing to run a cable all the way to the TV.
The speaker’s sound is tuned to boost mid-range audio, which is particularly useful for making out dialogue. It also has a built in AM/FM radio.
These are in production by Japanese housewares brand Plus Minus Zero and run ¥14,300 (USD $97).