1.Bluetooth 4.1 Transmitter and Receiver mode.Transmitter mode (TX), turn a non-Bluetooth TV, PC, CD player, headphones, iPod, MP3 / MP4 into a Bluetooth transmitter while pairing with Bluetooth stereo. Receiver mode (RX): Ideal for home or vehicle music streaming sound system. 2.Streaming content without latency in transmitter mode. The right sound at the right time for an experience without delay,so you can watch TV / Movie and listen to high-clarity sound in perfect synchronization. 3.Connect device with a 3.5 mm cable. Switch between Transmitter and Receiver mode.

BLUETOOTH TRANSMITTER AND RECEIVER: Transmitter function transforms 3.5mm audio-out media devices into a Bluetooth device capable of streaming Bluetooth audio; Receiver lets non-Bluetooth devices like car or home stereos receive high quality audio. INSTANT SOUND: Enjoy a latency lower than 95% of other devices with aptX Low Latency technology; end-to-end lag time is now 40 milliseconds so high-definition video is transmitted without problems in Transmitter mode. A 2 FOR 1 CONNECTION: Two Bluetooth headphones or speakers can pair at once so children can watch in silence and give parents a needed break. Note: aptX Low Latency does NOT support Dual Pair mode.