Features: BT Audio Receiver: It changes the traditional headphones and speakers into BT-enabled ones. After paired, play music wirelessly from your BT-enabled Smart Phones, Tablet and more without the hassle of cables. Clip-on Design: The Clip-on design Wireless BT Receiver bring you much convenience to enjoy your favorite music anytime and anywhere. You can easily clip the devices on your shirt, blouse, jacket, bag, etc. BT Connection: Wireless BT technology ensures transmitting strong signal in high quality and high speed. BT range reaches up to 10 meters in open space without obstacles. Strong Compatibility: Compatible with Android and iOS smart phones, tablet PC and more BT-enabled audio devices. 3.5mm audio port design, suitable for headphone (included) and other Stereo System with 3.5mm port. Hands-free Calls: With built-in microphone, it enables hands-free calls. Enjoy music wirelessly, easy to switch between calls and music, you will not miss any incoming-call while listening to music.