Brand N/A Quantity 1 piece(s) Color Black Material Plastic Function Bluetooth hands-free MP3 player FM radio U disk MP3 player AUX Compatible Cellphone Iphone Ipad MID and other devices with Bluetooth function Phonebook Capacity N/A Bluetooth Version 2.1 Transmit Frequency 2.400~2.480GHz Transmt Distance 7~10 m MIC Effective Distance 3m FM Frequency Range 87~108MHz SNR 80 +/- 2 dB THD 0.4% Frequency Response 20Hz~20KHz Talk Time 10 H Standby Time 200 H Charging Time 3 H Charger Voltage DC 12~24V Battery Capacity 350 mAh Interface/Port USB 2.0 External Card Max. Support Support TF / Micro SD card up to 32GB BQB Certification No Other Features Support audio format: MP3 WAV WMA; Support U disk playing MP3 function; Support FM and Car AUX functions; Built-in 350mAh lithium battery; Charging voltage: DC 5V 500~1000mA; Charging time: 3 hours; Bluetooth support HFP / A2DP / AVRCP Packing List 1 x Audio receiver 1 x 3.5mm audio cable (40cm) 1 x USB charging cable (70cm) 1 x Gasket 1 x 12~24V USB car charger 1 x English / Chinese manual