Features: 1.EASY APPLIANCE CONTROL: This wireless switch can control 12pcs or 12 sets of devices simultaneously. Click on, off for floor lights, double click on, off for air conditioning, etc. and long press to turn off all household appliances. 2.USE INDICATION: No wiring required, easy to establish multiple controls, achieving fast and easy upgrades. Connection method, for ZigBee. Need for Tuya ZigBee Hub( not included). 3.EASY INSTALLATION: Double sided adhesive on the back for easy fixation anywhere. Install the switch on the most convenient area. 4.ABS MATERIAL: Made of premium ABS material, this switch is wear resistant and scratch resistant, ensures a long life span. 5.SMART MODE: 1 click to enter smart mode, easily control all for Tuya smart devices with the buttons on the switch. Enjoy smart life. specification:Item Type: Wireless Switch Product Mode: YSB34 Material: ABS Connection Method: For ZigBee Product Size: Approx. 85 x 52.6 x 12.7mm / 3.35 x 2.07 x 0.5in Working Temperature: -20 to 70 Working Humidity: Less than 85% RH Battery: CR2032 x 1 (not included) PackageList: 1 x Switch 1 x Manual