With this switch, you can open and close curtains in your home more easily through wireless remote control and hands-free voice control. A linkage function is available for this curtain switch, enabling it to be linked with other smart appliances to produce different scenarios of intelligent automatic operation. This curtain switch is constructed of pc material. The length is 3.92cm and width is 3.92cm. The curtain switch is suitable for home, office, hotel, etc. Item Name: Curtain Switch Material: PC Features: Timer Schedule, Voice-control, Smart Scene 1 Gang: One-opening Single Control 2 Gang: Two-opening Single Control Voltage: AC100-240V 50/60Hz Maximum Load: 1 Gang: 3A 2 Gang: 2x3A Operating Frequency: 2.405GHz-2.480GHz IEEE802.15.4 Working Temperature: -10 Degrees Celsius to +40 Degrees Celsius Protocol: Work with ZigBee 3.0 Working Range: Less Than 100m Protection Level: IP20 Size Details: LxW: 3.92cm x 3.92cm/1.54" x 1.54" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Curtain Switch 1 x User Manual