VicTec 3.5mm Stereo Wireless Bluetooth Receiver For MP3 Music and Audio Handsfree Phonecall - Black This product has a superior Bluetooth wireless technology that allows you to switch between listening to your favorite musics and phonecalls on the go! Works with your Bluetooth-enabled Smartphone's, tablet or mp3 player. Enhanced voice detection and noise cancelling microphone makes hands-free calling simple and easy! Compact and simple design - directly plugs into the AUX port on your in-car sound system. Auto-pairing makes initial set up hassle free. Micro usb charging port,can charge it in car charger or usb port.