1)Bluetooth 2.0 2)main control chip:CW6627 3 ... )silver,pink,red,black 4)Working Distance:10 meters 5)Transmitting power:class 2 Bluetooth ... main control chip, with Bluetooth 2.0 interfaceUse industry- leading Bluetooth solution, WIDCOMM BTW Bluetooth software ... silver, pink, red, blackSpecifications:Executive standard: Bluetooth V.0Working distance: 10 metersModulation system:fhss 2 ...