Wireless 4-channel button in E-Design55, 80x80mm outside, frame inside dimensions 55x55mm, 15mm high. Very quiet and with battery (service life 2-7 years). Wireless buttons with double rocker can send four evaluable signals: press two rockers at the top and two at the bottom. The mounting plate can be screwed onto a flat surface or stuck to the wall, glass or furniture using the adhesive film provided. The sleeves in the box are used for screw fastening over a 55mm switch box.