Features: brand new and high quality Slide your finger to adjust the opening and closing range of the curtain at will. for Smart timing, APP remote operation, you can close the curtains even when you are not at home, bid farewell to the for sun exposure. Suitable for all kinds of room curtains: living room, bedroom, study, etc. The glass material is waterproof and moisture-proof, and the for touch switch can be safely touched even with wet hands. Voice control, convenient life. Specifications: Material:Metal+Plastic Size:Approx.12x3.8x7.2cm/4.72x1.5x2.83inches Color:Black/Gold/White Input voltage: 100-200V AC50-60Hz Rated power: 1800W Unlimited type: 2.4GHz Operating environment: -20-50℃ Support system: Alexa/Google-Home Tmall Wizard Package Includes: 1x Curtain Switch note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.