Features: LCD screen car Bluetooth MP3 player Equipped with caller ID function Supports Bluetooth speakerphone Adopts call for echo cancellation and noise suppression (CVC) technology Automatically switch from music player to call mode Equipped with stereo Bluetooth and FM transmitter technology Supports USB flash drive Supports external CD MP3 player audio input Supports MP3/WMA music format Supports automatic power-off memory function Compatible with 20-key remote controller and steering wheel remote controller Support listening Cell phone's music and answering calls via bluetooth. Main Features Color of the light:Red/Blue/Green Frequency Response:20Hz-15Khz Supported Format:MP3 WMA (option) Rated Operating Voltage:12 V Ultimate Operating Voltage:9-26 V Operating current:60-70MA Screen Size: 14*38mm Size:125*70*36mm Net weight: 82g Package weight: 92g Package includes: 1 x FM Transmitter Bluetooth Car MP3 Player 1 x Remote controller 1 x Cable