This car transmitter MP3 player, lets you stream music and calls directly. Make your driving more safe and enjoyable. Designed with advanced and FM technology, Multi-function such as , hands-free calling, music playing and USB ports. Features - Color: Black. - Material: ABS. - Size: About 13x10x3.5cm/5.12x3.94x1.38inch. - Support / U disk player and reader function, support MP3 / WMA format music. - The dual USB charging port 2.1A can expand the functions of portable devices and is suitable for charging all mobile phones, tablet computers and other electronic products. - 1.3 inch LED screen, display frequency point, file name and working status information. - It supports menu to set language, playback mode and sound mode, which is very convenient. - The FM transmission frequency is 87.5-108.0MHZ, which is very practical. Specifications: Wireless version: 4.0+EDR Wireless sound processing: A2DP. Effective range of microphone: 0.5-2m. Transmission distance:10M. Display screen: 1.2 inch LED screen. and USB: 128G. Music format: MP3/WMA. FM transmission frequency: 87.5-108.0mhz. Operating temperature: 0-40 degree centigrade. Distortion factor: <0.1 SNR: > 60db. AUX output/input USB charging: 5 v / 2.1 A + 1 A. Package list: 1 Music Player