... )Technology which be installed on car windshied and hollow sets2.Built-in FM transmitter,speaker3. ... Built-in rechargeable battery and back of device has polycrystalline silicon solar ... 5~108.0MHzStandby time 200 hours Charging time 3 hours Taking time 14 hours by FM, ... range 12-24V 2012 new with FM transmitter,speaker, LCD screen,TF slot, USB and phonebook function Bluetooth ...