Features:·1.Car Bluetooth Audio Receiver·2. Hands-free Calling·3. Car Charger, Phone Charger·4.3.5mm AUX Stereo·100% Brand New and High Quality-With compact portable design-Easily paired, no pairing code-Be attached with a standard USB charging port and a 3.5mm audio cable-Receive audio signal by wireless Bluetooth or transfer the audio signal by the included 3.5mm audio cable-Can easily and simply to upgrade the car stereo audio-Support universal control function (such as play/pause, previous song, next song, etc)-Support Bluetooth hands-free function, you cannot miss any call when listen to music.-Support all car stereo with AUX INHow to use:Initial Setup1. Insert the power plug into your car`s 12V power outlet (also known as cigarette lighter)2. Insert the audio cable into your car`s AUX port.3. Turn on your car stereo and set the input source to AUXPair with your phone1. Long press button until the left and right buttons starts flashing2. Open your phones Bluetooth function and search for this item3. After searched, select the BC10 AUDIO from the list of devices and pair it with your phone4. When paired successfully, the indicator light will turn blue5. Some phone may ask if you want to connect. Please select "Yes"6. Pair a different phone, only one can be paired to the BC10 AUDIO at any time. To pair a different phone: Repeat the previous steps of pairing previousDaily use To connect to BC10 AUDIO:1. If you are listening to music by a Bluetooth headset, turn off the handset so that your phone is free to connect to the BC10 AUDIO2. Turn on your car stereo and set the input source to AUX3. Make sure that there is power to the BC10 AUDIO which will attempt to connect with the phone (be last connected) again.4. When successfully connected, the indicator on the three keys turns blue5. If you are listening to music, the audio will be transferred to your car stereo