【LDAC High-Resolution Bluetooth Audio】LDAC Bluetooth audio adapter transmission supports high-resolution audio streaming over Bluetooth connections up to 990 kbps (higher than Aptx and Aptx HD), significantly reducing the loss of audio quality caused by Bluetooth transmission. It is the highest standard for Bluetooth devices, allowing you to enjoy high-quality wireless audio via Bluetooth and enhance wireless listening for all audiophiles. 【Enjoy Wireless Streaming Music】Bluetooth 5.0 receiver for home stereo has an advanced Csr 5.0 chipset, supports A2Dp/Avrcp/Hsp/Hfp protocols, provides more stable and longer range Bluetooth transmission and connection, creating a pleasant listening experience. 【3D Surround Sound Function】The featured 3D button is designed to provide an immersive audio experience with deep dynamic bass. You can switch the 3D mode to enjoy 3D surround sound from a normal audio source, delivering a robust and powerful music effect as well as crystal-clear sound. The green LED lights up when you switch to 3D audio. 【Special Multifunction Button Design】There is a special button in the middle to switch music and increase or decrease the volume by turning the button. Volume adjustment and song switching can be easily achieved by turning the button left and right. You never have to worry about low volume when your smart devices are not nearby. 【Wake Up the Old Stereo】The Bluetooth adapter can be connected to the old non-Bluetooth receiver, retro wired stereo, speaker, wired headphones, car stereo via the 3.5mm Aux/Rac jack. It can save the cost of buying a new receiver and give the old devices a new life! Note: This product is only a receiver, not a transmitter.