The Hive Smart Heating Thermostatic Radiator Valve (TRV) is a smartphone compatible product designed for central heating systems. It includes valve adaptors, 2 x AA batteries, and a smart thermo component. The white TRV Radiator Valve is controlled using the Hive app, offering app control and digital settings for efficient heating and cooling. Made by Hive, this product is a convenient and modern addition to any building supplies collection, providing energy savings and improved home comfort.