Premium stream Bluetooth Wireless Stereo Transmitter easily adds Bluetooth function to TV / PC / MP4, creates a wireless connection and transmits audio between PC / TV and Bluetooth speakers / headsets / amplifier. Enjoy wireless music in a perfectly synchronized high-quality musical feast. Stable dual link Bluetooth 4.2 transmitter can connect two different Bluetooth headsets simultaneously, share your happiness with your friend or family. The internal DSP can automatically coordinate the audio transmission to ensure more stable audio signal transmission. Perfect for exercising, watching late-night TV programs, but not disturbing others. Aptx HiFi Audio Compared with Bluetooth 4.1 transmitter, Bluetooth 4.2 aux adapter comes with aptX low latency technology and AAC / SBC codes, so you can freely immerse yourself in clear HiFi sound without sync delay. The transmission distance of one headset can reach up to 33ft / 10m, and the distance between two headsets up to 16ft / 5m with unobstructed effective range. Plug and play, no driver needed Easy to pair and automatically reconnect to the last 2 paired devices. Follow the steps: Plug the 3.5mm plug into your PC / TV, power the transmitter with the supplied micro USB cable, and it will turn on automatically and be ready to pair, then turn on your Bluetooth headphones and it will pair with your devices automatically. A blue LED indicator shows a successful connection. Attention 1. Double click the button to enter the pairing mode, if you want to pair with other Bluetooth devices, the blue LED indicator flashes. 2. Press and hold the button for 10 seconds, then you can factory reset the adapter with blue light for 2.5 seconds.