USB Bluetooth 4.2 Stereo Audio Transmitter for TV PC Bluetooth Speaker Headphone - BlackKey Features...This Bluetooth 4.2 Stereo Audio Transmitter only can Transmit audio.Connect to 3.5mm audio output devices such as TV, iPod, CD player, PC, Laptop,MP3 / MP4.Power by USB Charger,PC,Powerbank and other 5V USB devices.The blue LED indicator shows the working status of the product.Adopts Advanced Blu..