YISCOR Wireless Bluetooth 4.0 Audio Transmitter, Support Two Bluetooth Headphones Or Speakers Simultaneously for TV/MP3/MP4, 10M Valid Distance Turn your non-bluetooth devices to a bluetooth-enabled thru 3.5mm audio-out jack,transmit audio signal from tv,CD player to bluetooth headset, receivers Simultaneously Pair with Two bluetooth Headsets,you can hear audio from both headsets;Works perfectly when paired with 1 bluetooth speaker but not suitable for paired with 2 bluetooth speaker simultaneously Built-in Li-ion battery last for up to 5 hours, can also work while charging via USB port on your TV (5V,0.5A)[Please note this is a bluetooth transmitter not a receiver. This item is used for sending audio from your TV to bluetooth headphone. It can't be used to turn your wired headphone to wireless] Exquisite round design with perfect process, mini body, more smaller and lighter. High quality stereo transmission makes sure you can enjoy the auditory feast.