A self-sustaining shower speaker Waterproof shower speakers are hardly new, but Ampere has gone a step further by using hydropower to keep its speaker charged. The Shower Power speaker installs between your shower’s water pipe and showerhead, working like a water wheel to charge its battery and playing audio over Bluetooth from your phone. Ampere says that if you use the speaker only while the water’s on, it should never run out of power. … [Read more...] about CES 2021: The smartest ideas from the scaled-down virtual show
