Sanpyl Audio Receiver Transmitter, Wireless Transmitter Receiver Adapter, Audio Adapter for Computer Phone

["AUX IN/OUT is supported. Automatic memory connection, easier operation, easier connection. Built-in battery, long battery life.","Support audio equipment with audio input interface for wireless audio reception and .","Built‑in enhanced signal circuit, faster and more stable connection. Compatible with dual lossless audio formats.","Smart compatible, for Android, for IOS system phone and tablet, and all audio devices.","Support for automatic search and connection of devices for wireless audio . Built‑in AEC and ANC noise cancellation circuits, gorgeous stereo, purer sound quality."]