**********Low Delay: low latency for high-fidelity stereo sound, content transmission without delays in transmitter mode.*****Bluetooth 5.0 Transmitter and Receiver: In transmitter mode, convert a TV, PC, CD player, iPod, MP3 / MP4 other than Bluetooth into a Bluetooth transmitter. Receiver mode: Ideal for home or vehicle music streaming sound system.*****Lossless Sound Quality: Transmitter mode and receiver mode support aptx sound quality to keep more audio details, providing you with a richer and near-lossless sound.*****Great Battery Life: Bluetooth transmitter and Bluetooth receiver provides up to 8 hours of continuous audio playback or 140 hours on standby. Support play while charging.*****Portable: The compact Bluetooth transmitter and receiver is small, lightweight and easy to carry.