Urvoix Bluetooth Transmitter, Wireless Bluetooth 4.0 Audio Stereo Transmitter Pairing TWO Devices Simultaneously Music for TV PC Audio Streaming Charge free - use TV power via usb or use build in battery for portability. Unit size 1.73x0.43inch. Stream TV audio to two receivers (headphones, speakers) simultaneously Work with any type and brand of device such as TV, PC, CD player, iPod, Kindle Fire, MP3/MP4 etc. up to 10 meter/30 feet working range. Easy pairing with Bluetooth stereo headset, headphones, speakers and other Bluetooth stereo audio enabled system This one A wireless transmitter with 180ma battery capacity, to 5 hours of play time. with dual mode, you can use it plugged with AC adapter without worrying about the battery Standard 3.5mm audio socket and cable enable this Bluetooth transmitter to connect to for audio devices