iBOX BH4 headset allows you to make and receive calls without removing your phone or smartphone out of your pocket for example. When traveling by car or working in the office. With BH4 can safely drive a car without taking your hands off the steering wheel. It works on Bluetooth technology and is compatible with all Bluetooth-enabled devices. It enables simultaneous pairing two phones so you do not need, for example, choose whether you want to use your official or private. In the case of simultaneous conversations with two phones you can easily switch between them by suspending the second call.