bluetooth v4 transmitter wireless a2dp 3.5mm stereo audio music adapter

['wireless 4.0 technology ensures transmitting strong signal in high speed. transmission distance is up to 10m / 33ft, to enjoy wireless music.', 'can be connected to the audio devices (such as mp3, mp4, tv and pc, etc.) without bluetooth function, changing them into bt-enabled ones.', 'plug and play, no need any other driver software, powered by usb, there is also no time limited.', 'adopts advanced bluetooth module which lets it get superior sound effect with a2dp.']