AngLink Wireless Bluetooth 4.1 Headset with In-car Charging Dock and CVC Microphone Support Noise Cancellation Hands free Calling Multi-point Technology NFC for iPhone 6 6Plus 5s 5c 5 and Other Android Bluetooth Enabled Devices Hands Free: While not in-use, you can just hang the headset in the provided dock , which also can be fixed on air-vent of your car. Intelligent On-off: While in dock, the headset remains in sleep mode, when you pick it up, it automatically wakes, connects, and answers. Bluetooth 4.1 Technology: Compared to previous versions, Bluetooth 4.1 features clearer sound and better performance, faster data transfer, which means less sound lag. Multi-point Technology: The multi-point technology allows you to connect two phones at the same time, thus you can switch freely from your business call and family chat. CSR Noise Reduction: Equipped with CSR intelligent chip to get high quality voice recording. This technology ensure that your voice sounds clearly in a noisy environment and achieve real intelligent reduction.