... 4GHz Frequency -Operating Range:10 M -Mode:Hands Free/Headset/A2DP/AC RCP -Version:V2.1+EDR Details of ... Stereo Bluetooth Headset -Stereo Bluetooth Headset the NEWEST style! -(We also can make it ... as Mono headset)-Version: V2.1+EDR-Mode: Hands Free/Headset/A2DP/AC RCP-Frequency:2.4GHz ... about -Color: black,white,red,green,purple Stereo Bluetooth Headset