Support audio equipment with audio input interface to realize wireless audio reception and transmission Supports automatic search and connection of Bluetooth devices to realize wireless audio transmission. Built-in AEC echo cancellation and ANC noise cancellation circuits, gorgeous stereo, and more pure sound quality Built-in enhanced signal transmission circuit, fast connection, more stable and continuous sound. Compatible with dual lossless audio formats Support AUX IN/OUT Automatic memory connection function, easier operation and more convenient connection. Built-in battery, long battery life Smart compatible, Android, IOS system mobile phones and PADs, and all Bluetooth audio devices. The product connection is simple, and it is cumbersome to drive and download the APP; The launch state supports the one-to-two function Stereo supported in transmit mode.