1. Smart thermostat that can be controlled by your phone before you come back home. Wall mount or tabletop installation style meets your different needs.2. Pairing the thermostat with receiver, then the receiver can enforce heating, more flexible to use. Create thermostat group to centralized control and support device sharing.3. Compatible with for and Google Assistant for hands-free voice control. 6 periods can be set each day, free to choose manual mode or auto mode.4. Backlit LCD display for easy reading, touch button to make simple operation. Keypad locking function is designed to prevent children from operating by mistake.5. With anti-froze function to prolong the service life of the device. 1 accuracy keeps temperature within the level you set.Model Number:ME901 Wi-Fi Smart ThermostatVoltage: 230VLoad Current: 3ATemperature Sensor: NTCTemperature Accuracy: 1Temperature Setting Range: 5-90Protection Level: IP20Wireless Transmission Distance: 100-200mWireless Frequency: 868MHz/ 433MHz (Two-way )APP: TuyaPower Supply: 2 * AAA Batteries (NOT INCLUDED), DC 5V USB Charing, AC230V WiringItem Size:Thermostat: 135 x 87.5 x 23.2mm / 5.3 x 3.4 x 0.9inchReceiver: 86 x 86 x 26mm / 3.4 x 3.4 x 1.0inchcolor:WhiteMaterial:plasticsize:135 x 23.2 x 87.5mmPackage Contents:1 x Smart Thermostat1 x ReceiverOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.