Super mini audio bluetooth transmitter (45*11mm), lightweight and portable. Widly used for TV, PC, CD player, iPod, DVD, MP3, MP4 player, headphone, speaker and other bluetooth stereo audio enabled system. High-Fidelity Bluetooth 4.0 bluetooth transmitter with A2DP for enhanced audio quality, allows you to enjoy the stereo music without wire restriction or watch TV quietly (not for answering calls). Multi-point design, 1 bluetooth splitter transmitter could connect with 2 bluetooth headphones/speakers, or other bluetooth stereo audio enabled system at the same time. Bluetooth audio transmitter with excellent performance, 5 hours of play time and 10 meters(33 feet) working range. Build-in Lithium battery. Also equipped with USB cable, supporting to use it plugged with AC adapter.