The design of the91378401WH 2N Indoor Talk touch screen monitor answering unit will suit every flat or home. The aesthetic appearance of this product was achieved by using a glass surface and striking backlighting of its icons. However, we placed particular emphasis on selecting the highest-quality audio components in order to achieve a high-quality sound. This means you can talk to visitors outside as if they were standing right next to you. Invite them in and press the icon to open the door from the comfort of your home.