The Worcester Comfort 11 RF Wireless Control Set is a programmable thermostat designed for use with Worcester Bosch boilers. It features a 7- day thermostat programmable days and operates on battery power. The control set is compatible with the Greenstar 8000 model and has a wireless wire configuration for easy installation. With a sleek white design, this wall-mounted thermostat boasts a square shape and a 1.57-inch display. It offers programmable control style with a rotary knob and digital interface, making it a convenient addition to any smart home system.