The Rhythm Crankspeaker combines a 4,000 mAh powerbank, wireless speaker, flashlight, area light, FM radio, and clock in an IP44-rated body powered by a hand-crank. The built-in USB-A port can be used
to charge smartphones. ...
Автор: notebookcheck.net
Источник: https://www.notebookcheck.net/Rhythm-releases-Crankspeaker-All-in-one-hand-powered-Bluetooth-speaker-FM-radio-flashlight-area-light-clock-and-powerbank.1075354.0.html