The Music Receiver simply connects to the Line-In or Aux port on your home speaker system. You can then stream audio from your Bluetooth enabled cell phone or MP3 player to your speaker system. Enjoy the convenience of having your music source in the palm of your hand and listening to it through your home stereo. Features Supports Aux input audioBluetooth Support for all Bluetooth equipment with A2DP audio streaming.USB A female port for powering the receiver from any USB power source. Will work with iPhone OS 4.2.1 or LaterCompatible with all bluetooth devices that support media audio, including iPad and iPad 2