Features: 1) Collar pin Bluetooth headset in new style 2) Plug-and-play and simple pairing for easy use 3) Solutions for superior sound quality 4) Better interference resistance via the use of Bluetooth technology 5) Supports wireless audio streaming and headset / hands free application 6) Supports remote control feature 7) Listening to music and talking over wireless phones and computer Specifications: 1) Bluetooth V1.2 2) Chipset: CSR Bluecore02 3) Frequency: 2.4GHz~2.4835GHz ISM band 4) Transmitter power: 1mW 5) Charging time: Within 2 hours 6) Long talk time: up to 6 hours 7) Standby time: up to 180 hours 8) Operation range: Up to 10 Meter 9) Volume control: adjustable control 10) Function key: Answer/Refuse/Hang up/Matching/Turn on/Turn off 11) Built-in 200mAh / 3.7V polymer rechargeable battery 12) Operation temperature: -10 to +45degreeC 13) Weight: 15g 14) Dimensions: 66mm(L)*21mm(W)*11mm(H)