The HIVE SLT2 Programmable Thermostat & SLR2 Receiver is a white plastic device that allows you to control your central heating radiator with ease. It boasts a 7-day programmable schedule, wireless connection, and is powered by AA batteries. The thermostat features temperature sensor technology and frost protection properties, making it a convenient and efficient choice for maintaining a comfortable home. The Hive brand ensures compatibility with other Hive products, and the smart home protocol via Ethernet allows for easy integration into your smart home system.