Bluetooth TransmitterTransmit audio from phone or Pad to non-Bluetooth devices, such as headphones/wired headphones/car stereo/stereo speakers, and more.Bluetooth 5.0 ReceiverWith Bluetooth 5.0, you can turn your old stereo into a nifty Bluetooth-enabled one. You can enjoy Hi-Fi music streaming by connecting the Bluetooth receiver to a non-Bluetooth car/home stereo system.Long Battery LifeBoth Bluetooth transmitter and Bluetooth receiver offer up to 8 hours of continuous audio playback or 140 hours on standby. Supports game while charging.Lossless Sound QualityReceiver mode supports aptx sound quality to retain more audio detail, giving you richer and nearly lossless sound. (such as car/wired speakers/wired headphones, etc.)ConvenienceEasy Operation and Connection, No Driver or App Needed to Install. The compact Bluetooth transmitter and receiver are small, light and easy to carry.