Features:_x000D_ Smart thermostat that can be controlled by your phone before you come back home._x000D_ Wall mount or tabletop installation style meets your different needs._x000D_ Pairing the thermostat with receiver, then the receiver can enforce heating, more flexible to use._x000D_ 2 power supply mothods: 2 * AAA batteries (NOT INCLUDED), DC 5V USB charging, AC230V wiring._x000D_ Create thermostat group to centralized control and support device sharing._x000D_ Compatible with Alexa and Google Assistant for hands-free voice control._x000D_ 6 periods can be set each , free to choose manual mode or auto mode._x000D_ Backlit LCD display for easy reading, touch button to make simple operation._x000D_ Keypad locking function is designed to prevent children from operating by mistake._x000D_ With anti-froze function to prolong the service life of the device._x000D_ 1 accuracy keeps temperature within the level you set._x000D_ Specifications:_x000D_ Material: PC_x000D_ Color: White_x000D_ Voltage: 230V_x000D_ Load Current: 3A_x000D_ Temperature Sensor: NTC_x000D_ Temperature Accuracy: 1_x000D_ Temperature Setting Range: 5~90_x000D_ Protection Level: IP20_x000D_ Wireless Transmission Distance: 100-200m_x000D_ Wireless Frequency: 868MHz/ 433MHz (Two-way FSK)_x000D_ APP: Tuya_x000D_ Power Supply: 2 * AAA Batteries (NOT INCLUDED), DC 5V USB Charing, AC230V Wiring_x000D_ Item Size:_x000D_ Thermostat: 135 * 87.5 * 23.2mm / 5.3 * 3.4 * 0.9in_x000D_ Receiver: 86 * 86 * 26mm / 3.4 * 3.4 * 1.0in_x000D_ Package Size: 14.0 * 9.5 * 6.7cm / 5.5 * 3.7 * 2.6in_x000D_ Package Weight: 350g / 12.3oz_x000D_ Package List:_x000D_ 1 * Smart Thermostat_x000D_ 1 * Receiver_x000D_ 1 * Set of Installation Screw_x000D_ 1 * USB Cable_x000D_ 1 * Manual