Fosi Audio’s $229.99 BT20A MAX packs a TI TPA3255 amp, real 2.1 power, and unusually robust Bluetooth codec support—does it deliver where it counts?

There is also an app for Android and IOS available. With other devices based on Linkplay you can create also a multi room system for your house. Overall it is something like Sonos but for less money.

(This product is available under a free and permissive license, but needs financial support to sustain its continued improvements. In addition to maintenance and stability there are many desirable ...