CD quality: aptX HD is supported in both TX and RX modes. When using Hi-Fi devices, you can send or receive high-quality audio. aptX Low Latency Support: When using TX mode, you can pair with aptX low latency Bluetooth headphones while watching TV. Experience minimal delay for synchronized audio and video. Dual Link: Can be paired with two Bluetooth receivers at the same time, such as a Bluetooth headset and a Bluetooth speaker. Stream HD audio to two devices simultaneously. With display bar: Features a blue LED indicator to show Bluetooth transmission and reception status at a glance. Always Standby: Remains in pairing mode even when connected Bluetooth devices are turned off. For best results, keep the Bluetooth adapter connected to a power source. Material: Metal + Plastic Color: Black Package Contents: 1 x Bluetooth 5.0 adapter 1 x Fiber Optic Cable (1m/3.28ft) 1 x USB power cable (50cm/1.64ft) 1 x 3.5mm AUX audio cable (50cm/1.64ft) 1 x RCA cable (50cm/1.64ft) 1 x English manual Only the items listed are included; other products are not included. Note: Lighting and display settings may cause slight color variations between the image and the actual item. Measurement error is +/- 1-3cm.