Innoo Tech Bluetooth 4.0 Car Audio Receiver Hands-free Car Kit Speakerphone with Mic Comes with Dual USB Charger 3.5mm Aux Jack Easy Installation-Black Bluetooth 4.0 Chip-Uses an advanced Broadcom Bluetooth 4.0 chip which provides high quality sound with low power consumption. Echo-Cancellation-Features echo cancellation to ensure clear phone calls. NFC Technology-Supports NFC which makes Bluetooth pairing simple and convenient. Bringing your phone or device close to the receiver will allow the NFC technology to automatically pair them, without the need to search manually. Universal Device Compatibility-The device is compatible with the vast majority of smartphones. Two smartphones can be connected to the device at the same time. Hands-Free-Using the device in your car will give you a safe and easy-to-use hands-free communication solution.