Hive Thermostat is a smart heating and hot water control system that operates on battery power. It includes a thermostat, hub, receiver, and batteries, with a sleek white square design. The thermostat is compatible with boilers and can be controlled using various smart home platforms like Google Assistant, Amazon Alexa, and Samsung SmartThings. It features wireless connectivity, app control, voice control, and frost protection, making it a convenient and programmable choice for efficient heating management in your home.