来自MSN

This battery-powered amp that turns any analog speaker into a portable Bluetooth speaker is ...

The SoundUp battery-powered Bluetooth amp is launching on Kickstarter 100W of mono class D amplification, and two can work in a pair 40 hours of playback on battery, 1kg (2.2 lbs) weight What's more ...
The Verge

Urbanista turns its solar-powered smarts to a Bluetooth speaker

The Malibu is a waterproof speaker that Urbanista claims might never run out of battery in the right conditions. The Malibu is a waterproof speaker that Urbanista claims might never run out of battery ...