Brand N/A Quantity 1 piece(s) Color Black Material Plastic Function Handsfree Compatible Cellphone N/A Phonebook Capacity N/A Bluetooth Version V3.0 Transmit Frequency 2.4~2.48GHz Transmt Distance 10 m MIC Effective Distance N/A SNR 60 dB THD 0.1 Frequency Response 2.4GHz Interface/Port Cigarette lighter External Card Max. Support N/A Talk Time 8 H Standby Time 700 H Battery Capacity 890 mAh Other Features Allows a speaker phone connecting to two phones; Support Hands-free Heaset Bluetooth protocol specification; Built-in DSP noise suppression and echo elimination function; Talking time: 8 hours; Standby time: 700hours; 3.7V 890mAh lithium battery; Wireless connection range up to 10m Packing List 1 x Bluetooth handsfree 1 x Battery 1 x 12~24V car charger 1 x Data cable (90cm) 1 x Clip 1 x English / Chinese manual