The device can only be powered with DC5V input voltage, can not connect 100-240VAC voltage. If you need to mount the device on the wall, you need to buy an extra AC 110 220V to DC 5V converter to install on the device to power it, otherwise you can only put it on the desk with a Type-C cable to power it Assembly State: Ready to Use Power Supply: DC5V/1A Power Interface: Type-C Wiring or DC 5V AC-DC Converter: Not included in the box Wi-Fi Type: 2.4Ghz Wi-Fi: IEEE802.11b/g Wireless Range: 45m Working Current: 550mA Wi-Fi Standby: 25 mA Temperature detection range: -10 to 60 degrees Humidity detection range: 0-90% (non-condensing) Temperature detection accuracy: + - 0.3 degrees Humidity detection accuracy: + - 5% Bluetooth version: Bluetooth 5.0 Remote control distance: 7 m Voice control: Home, Alexa Color: White Material: Plastic Package Contents: 1 x Humidity Controller Only the above package content, other products are not included. Note: Light reflection and different displays may