... ,HTC, nokia, MOTOROLA, samsung. SONY Ericsson etc USB interface cell phone battery charging, also can be used for MP3, MP4, machine ... , indicator. Use a USB line and convert joints, a mobile phone, MP3 or standard USB interface products with the USB power ... as its charge. (this product does not provide data) Safty: Plug by solution design, make you between elastic when using in the car ...