OldShark Bluetooth Car Receiver 4.0 Hands-free Car Kit Wireless Music Receiver Aluminum Car Audio Radio Adapter with 2-Port USB Car Charger Magnetic Base for Car Audio Streaming Sound System [Auto-on & Auto-connect]: The receiver will power on automatically when you start the car, then auto sync with the last connected phone (please make sure the Bluetooth of your phone is turned on before starting the car). [Latest Bluetooth 4.0 technology]Easy to add Bluetooth function to your car stereo system. SIMPLE hands-free solution for answering / receiving phone calls and streaming your personal music from smartphone and tablets [One Button Design] Control almost all receiver and phone functions with a single button, including Siri and other voice operated features. Locate the bluetooth receiver in a suitable location to which the magnetic base adheres. [Echo and Noise Cancelling Technology] supply a more clear call quality. Everything is included. Connect to car stereo via 3.5 mm AUX, package includes 2-Ports USB car charger to charge the receiver, plus 2 smartphone and mobile devices [OldShark Lifetime Warranty] Everyone can get $3 discount, please enter coupon MUIRF6PJ when purchase. This product is sold exclusively by OldShark and registered Trademark by OldShark. Only buy from OldShark to get genuine OldShark products with manufacturer warranty.Any questions, please contact us, we will provide excellent service.