Make a solar Bluetooth speaker

Install the passive radiator/driver

2 of 14
passive radiator

credit: treyes4

2 of 14

When we disassembled our old USB powered desktop speakers we were able to get four of these passive radiators. If you're lucky you might find one. The plastic enclosure was acquired from a old organizer tray.

We used superglue to seal the rubber of our plastic enclose.