Description USB adapter perfectly suitable for charging 2 devices simultaneously like smartphone/MP3/MP4/GPS/Camera and device etc. Used to charge any GPS Camera digital cameras or any device that may be charged via USB. Feature - Color: Black - Material: plastic - Size: 8 x 4 x 3cm - Dual USB jack you can simultaneously charge two phones - Dual USB port integration USB waterproof cover How to install the socket: - Connect the red line to + and the black line to - - Put the handle clip on the motor handle and screw it,or fixed on the rear mirror/seat box. - Used to charge any GPS Camera digital cameras or any device that may be charged via USB.