Brand N/A Model SG01 Quantity 1 piece(s) Color Black Material ABS housing Screen Size N/A Function Handsfree / MP3 Player Compatible Cellphone Cellphone with Bluetooth Phonebook Capacity No Bluetooth Version 4.0 Transmit Frequency ISM2.4~2.48GHz Transmt Distance MIC Effective Distance 2 SNR 82 dB THD 0.5% Frequency Response 300Hz~20KHz Talk Time 18 H Standby Time Over 1000 (60 days) H Charging Time 2~3 H Charger Voltage DC 12~24V Battery Capacity 800 mAh Interface/Port Mini USB External Card Max. Support N/A Other Features Supports HSP HFP1.5 profiles Certification CE BQB Certification No Packing List 1 x Bluetooth car kit 1 x Metal clip 1 x USB cable (70cm) 1 x Car charger 1 x 3.7V / 800mAh lithium battery 1 x English user manual