... Wireless Bluetooth Stereo Headset - Retail Packaging - Black for Iphone 4,4s,5,Ipad,PC,PS3 Our catalog for your reference: Specifications ... VersionV2.1TypeStereo headphone with internal micOperation Distance10mRange of Frequency2.4 to 2.4835GHz ISM bandSensitivity85dBPC InterfaceUSB2.0Music FormatMP3 at ... Wireless Bluetooth Stereo Headset - Retail Packaging - Black for Iphone 4,4s,5,Ipad,PC,PS3