LED display: Ugreen Audio Bluetooth Adapter has an LED display that clearly shows the paired devices and modes, giving you great convenience and optimising the experience. Extremely long battery life: Bluetooth receiver transmitter lasts approx. 32 hours in TX mode and 28 hours in RX mode, while a full charge takes only 2 hours. So you can continue to enjoy your music wirelessly when you need itaptX technology: Bluetooth adapter in TX mode supports aptX AD-HQ, aptX, aptX Adaptive and aptX HD audio decoding. aptX AD-HQ supports audio with up to 24-bit/96kHz. You can enjoy music in better sound quality with your wireless device. Dual pairing: Bluetooth transmitter can connect two devices simultaneously in TX and RX mode. This means you can watch TV with friends or play games on your PC without disturbing other Family members. 2 in 1 Bluetooth adapter: Bluetooth transmitter has transmitter mode and receiver mode. In transmitter mode, the adapter turns a non-Bluetooth TV, PC into a Bluetooth transmitter. In receiver mode, Bluetooth function is added to wired speakers or home stereo systems.