Quantity: 1 piece - Color: Black + silver - Function: Hands-free - Compatible with the phone with Bluetooth function - Bluetooth Version: V 3.0 - Transmit Frequency: 2.402GHz~2.480GHz - Transmit Distance: 10m (Max) - MIC Effective Distance: 0.5~0.8m - THD: 0.1% - Talk Time: 10 hours - Standby Time: 300 hours - Charging Time: 2 hours - Charger Voltage: DC 5V / 1A - Battery Capacity: 600mAh - Interface: Mini USB - Supports answer end reject voice dial redial functions - Full duplex echo cancellation noise suppression DSP technology functions - Voice prompt (supports Chinese/ English / Spanish) - Supports two mobile devices pairing simultaneously - Pairing phone memory 8 - Packing list: - 1 x Hands-free car kit - 1 x Car charger - 1 x USB cable (180cm) - 1 x English user manual