Brand N/A Model BT-01 Quantity 1 piece(s) Color Black + silver Material Plastic housing Function Handsfree / MP3 player Compatible Cellphone No Phonebook Capacity No Bluetooth Version 2.0 Transmit Frequency 2.4GHz Transmt Distance 10 m MIC Effective Distance No FM Frequency Range 87.5~108MHz SNR No dB THD No Frequency Response 20Hz~50KHz Interface/Port SD External Card Max. Support 4GB Screen Size 1.5" Other Features Stereo Bluetooth / FM transmitter; Hands free operation; Supports SD/MMC card; Supports MP3; Playback MP3 files from phone; D.SP for echo cancellation recall last setting on restart; Voltage: DC 12V. Packing List 1 x Car MP3 player Bluetooth hands-free speakerphone 1 x Remote control (1 x CR2025) 1 x Audio cable (25cm) User Manual: http://m5.img.dxcdn.com/CDDriver/CD/sku.219961.doc