The Hive Mini V4 Smart Wireless Thermostat, Receiver, and Hub is a sleek and efficient solution for controlling your central heating radiator. With battery-operated AAA batteries included, this white square-shaped thermostat offers 7-day programmability and features such as frost protection and automatic system switching. Compatible with Hive smart home devices, this thermostat can be controlled via the Hive app and boasts a compact wireless design for easy wall mounting. The Hive Mini V4 is a reliable choice for maintaining a comfortable home environment.