Features: 1. Main Function Perfect Quality 2. Wifi Smart Light Switch 3. Bluetooth Pairing , Fast Response 4. App Remote Control To Make Your Home Smarter 5. Turn-On Or Off Led Indicator, With Led Backlight At Night , It Is Easy To Turn On The Lights 1. Input Voltage: AC 85-250V 50/60hz 2. Current: Maximum 10A/Channel 3. Maximum Wireless Distance: 45m 4. Wi-Fi Standard: The Ieee 802.11B/G 5. Wi-Fi Type: 2.4Ghz 6. Bluetooth Version: Bluetooth 5.0 7. Operation Mode: Pressing Button Mode 8. Standby Power Consumption: 0.6w 9. Operating Temperature: 0 ~ 60 (32F~140F) 10. Working Humidity: 1% ~ 85% RH (Non-Condensation) size: 86mm x 86mm x 41mm Material: ABS colour: white Package Contents: 1 x Graffiti Switch 1 x English Manual Only the above package content, other products are not included. Note: Light reflection 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.