Features: Bluetooth hand-free call Bluetooth mobile phone music Back car function Stereo radio Colorful button Charge function Specification: Color: Black Material: ABS/Alloy/electronic component 4.1 inch full viewing angle high-definition TFT screen. Automatic conversion colorful lights. 24 hours digital clock, date. Support power output can charge for mobilephone or other USB device. Support FM function.(Frequency :87.5-108MHz) Support IR wireless remote controller Support Storage device: USB disk / TFcard / other USB storage device Support video format: RMVB/RM/FLV/3GP/MPEG/DIVX/XVID/DAT/VOB/AVI/MP4 Support audio format: MP3/WMA/OGG/APE/AAC/FLAC/WAV Support picture format: JPG Interface: USB / TF/ AUX Support max outer storage: 64GB Output power: 4X50W high power output Input voltage: DC12V Size:188mm*58mm*120mm