Product Features
Latest update stereo bluetooth hands-free car, bluetooth V2.1 + EDR specification standards. Use the advanced CSR bluetooth chip.
Built-in DSP (digital signal processing (DSP) noise suppression and echo cancellation function.
Support A2DP profile, one Bluetooth device paired. 
Support simple pairing.
Support FastStream, Audio Codec: SBC, FastStream.
Battery type: lithium-ion battery, DC5V / 200mAh.
Connectors: 3.5mm Jack for stereo audio input. Audio input sensitivity: 0.9V output 0dB

Product Specifications
Bluetooth version: V2.1+EDR
Transmission range: 10 meters or more
Frequency range:  2.402 GHz ~2.480GHz
Product type: car accessories
Talk time: About 15 hours
Standby time: About 62 days
Battery type: Lithium polymer rechargeable battery

Product Accessories
USB charging
Car charger (optional)
Brigade charger (optional)
Instructions: 1 pc
Warranty card: 1 pc
Package Type: Each pc into gift box, then Master carton.