Product DescriptionPlug the car kit into the auxiliary input of your vehicle. If necessary， use the audio dock to relocate your auxiliary input to a more accessible location. Using the car speaker to enjoy music and the phone call.Superior Bluetooth wireless technology allows you to switch between listening to your favorite tunes and making calls 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 while keeping a low profile. Note for Apple Users: If you are having Bluetooth connectivity issues， please try resetting the "Network Connections". Go to SETTINGS > GENERAL > RESET > RESET NETWORK SETTINGS. Auto-pairing makes initial set up hassle free.Features:1. 3.5mm audio out. 2. Micro USB charging. 3. Built-in high capacity lithium battery 100mAh.