This is the living-room base unit for a hands-free color TV interphone system. The features of this product are as follows: - Its ultra-thin body is only 21 mm thick; - The electrostatic touch panel makes the surface completely flat, producing a simple appearance; - The operation display shows only icons, which are intuitive for anyone to use; - The large 7-inch screen gives a very clear and vivid view of the building entrance; - The thin, flat, simple body design will blend in with any kind of home interior.