The simple to use Bluetooth handsfree car kit allows you to make calls or answer your mobile phone in your car without having to hold it. Bluetooth 2.1. Simple single press operation to answer or reject phone calls and a simple operation to dial or redial the last number. It has a loud built-in speaker and mic. Full duplex with echo cancelling and DSP Noise Reduction. It can pair with 2 phones simultaneously with multi-point connection to two phones at the same time. It has a built-in rechargeable Li-ion battery and can last up to 30 hours long talk time and 500 hours for standby. Charger included.