Smart Remote Dimmer Switch SPEC: 868 MHz, battery powered(1*CR2032), EU/UK wall plate Feature: Tapo smart app, Tapo smart hub required, smart action, multiple ways to control(click, double click, rotate), multiple ways of installation(paste, magnetic, screw), wall plate and 3M bonding tape and screws included, battery included, 1 year+ battery life, CE / UKCA certified