This bluetooh device is fabulously designed to match your style;needs and comfort. It comes with a battery talk time of an amazing 8 hours which is chargeable using a simple mini USB cable. The Music Receiver(Hands-Free) Is Designed To Receive Music From Mobile Phones Or Transmitters That Feature Bluetooth Wireless Technology. The Music Receiver Can Be Used With Almost Any Audio Receiver With An Audio Input Jack;Including Auto mobiles .Listen To Music From Your Smart Phone Or Mp3 Player On Your Existing Home Or Car Audio System.To Enjoy Car Music;Call Solutions;The Use Of Smart Phones To Make Calls And Listen To Music Through The Car Stereo. The Product Is Embedded Echo Cancellation Microphone.Using Only One Button;You Can Easily Switch Between Music And Phone.