NAKAMICHI | NQ511B 1-DIN Car Stereo in-Dash Digital Media Bluetooth Receiver Connectivity technology Bluetooth Controller type Android Connector type usb , hdmi Power supply Requirement DC 12V Maximum power output 50W ×4CH Unit Dimensions(W×H×D) 178×108×50mm Usable Audio Fromats MP3/WMA/FLAC USB Port Type 2.0