LED display: jack Bluetooth adapter has an LED display that clearly shows the paired devices and modes, which offers you great comfort and optimises the experience Extremely long battery life: Bluetooth receiver transmitter lasts . 32 hours. in TX mode and 28 hours. in RX mode, while a full charge only 2 hours. lasts. So you can continue to enjoy your music wirelessly when you need it technology: Bluetooth adapter in TX mode supports AD-HQ, , Adaptive and HD audio decoding. AD-HQ supports audio at 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 on the PC without disturbing other family members 2 in 1 Bluetooth adapter: Bluetooth transmitter has transmitter mode and receiver mode. In transmitter mode, the adapter transforms a non-Bluetooth-enabled TV, PC into a Bluetooth transmitter. In receiver mode, wired speakers or home stereo systems Bluetooth function is added Not compatible with Pro 2/ 4 and musical instruments such as piano, guitar Color: black Material: aluminum alloy Package Contents: 1 * Bluetooth Transmitter Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.