Support wireless charging, with 400mAh capacity charging compartment, 350 hours of battery life 1.5 hours of charging 20 hours of music. In addition, BSI w04 also supports Qi charging, qi wireless charging system consists of base stations and mobile devices. The base station contains one or more emitters that provide the energy to be received. The mobile device contains a receiver that provides power to the load (such as a battery), and the receiver also provides information to the transmitter.
An energy conversion unit in the transmitter converts electrical energy into a wireless energy signal, and an energy collection unit in the receiver converts the wireless energy signal into electrical energy.