Turn your regular stereo audio devices into a Bluetooth-enabled, wireless streaming machine through 3.5mm audio-out jack. Work with any type & brand of device such as TV, PC, CD player, iPod, MP3/MP4 etc. up to 10 meters working range Easy pairing with Bluetooth stereo headset, headphones, speakers & other Bluetooth stereo audio enabled systems Adopt high sensitivity level, high performance chip. High performance Bluetooth 2.1 with A2DP for enhanced audio quality, means that you can enjoy the stereo music without wire restriction or watch TV quietly (not for answering calls) Bluetooth Version: Bluetooth V2.1, class 2 Effective Range: 10m Bluetooth Transmitter Version: support V2.0, V3.0, V4.0