The smart thermostat provides uniform and comfortable temperature control in all rooms of your property. With technology, know-how and quality materials to offer you a safe and reliable thermostat combined with an elegant and contemporary design.Features:< /p>* Smart thermostat that can be controlled by your phone before you get home.* Wall or tabletop installation style meets your different needs.* Pairing of thermostat with the receiver, then the receiver can apply heating, more flexible to use.*2 power modes: 2*AAA batteries (NOT INCLUDED), DC 5V USB charging, AC230V wiring. * Create a group of thermostats for centralized control and support device sharing.Specifications:Material: PCColor whiteVoltage: 230 VCharging current: 3 ATemperature sensor : NTCTemperature accuracy: 1Temperature adjustment range: 5 ~ 90Protection level: IP20Wireless transmission distance: 100-200mWireless frequency: 868MHz/433MHz (two-way FSK)APP: TuyaPower supply: 2 AAA batteries (NOT INCLUDED), DC 5V USB charging, AC230V wiringItem size:Thermostat: 135 * 87.5 * 23.2 mm / 5.3 * 3.4 * 0.9 inchReceiver: 86 * 86 * 26 mm / 3.4 * 3.4 * 1.0 inchReceiver size package: 14.0 * 9.5 * 6.7cm / 5.5 * 3.7 * 2.6inPackage weight: 350g / 12.3oz< p>Package list:1 * smart thermostat1 * Receiver1 * installation screw set1 * USB cable1 * manual