The Esinkin Bluetooth Audio Adapter is a sleek black device that allows for wireless audio streaming to your sound system. With Bluetooth v4.0 standard connectivity, this adapter is compatible with audio receivers and features a 3.5mm jack port for easy connection. It is perfect for adding Bluetooth connectivity to your home networking and audio devices, making it simple to enjoy your favorite music without the hassle of cables. Plus, with free express shipping in the United States, you can start streaming your music right away.INV; SUNTOT1