The smart thermostat provides uniform and comfortable temperature control in all rooms of your property. Designed with advanced technology, high-quality materials, and a sleek contemporary look, this reliable thermostat offers safe and efficient performance. Features: * Control the smart thermostat remotely via your smartphone before arriving home. * Install on the wall or place on a tabletop to suit your setup preferences. * Pair the thermostat with the receiver for flexible heating control. * Dual power options: 2 AAA batteries (not included), DC 5V USB charging, or AC 230V wiring. * Create a group of thermostats for centralized management and support device sharing. Specifications: Material: PC Color: White Voltage: 230 V Charging current: 3 A Temperature sensor: NTC Temperature accuracy: 1C Temperature adjustment range: 5 ~ 90C Protection level: IP20 Wireless transmission distance: 100-200m Wireless frequency: 868MHz / 433MHz (two-way FSK) App: Tuya Power supply: 2 AAA batteries (not included), DC 5V USB charging, AC 230V wiring Item size: Thermostat: 135 x 87.5 x 23.2 mm / 5.3 x 3.4 x 0.9 inch Receiver: 86 x 86 x 26 mm / 3.4 x 3.4 x 1.0 inch Package dimensions: 14.0 x 9.5 x 6.7 cm / 5.5 x 3.7 x 2.6 in Package weight: 350g / 12.3 oz Package list: 1 x Smart thermostat 1 x Receiver 1 x Installation screw set 1 x USB cable 1 x User manual