Boyo VTG43 Rear View Mirror with 4.3-Inch Touch Panel LCD with Navigation/Bluetooth Built-in GPS navigation system The mirror also includes three video inputs, two of them designed for rear-view cameras Pair up your compatible phone, and you'll be able to make and receive calls while keeping your hands on the wheel Clip the clamp on the back of the navigator, the left half of the navigator used as the normal rear-view mirror, on the right half is the GPS navigator screen.