Feature: 1. Friction driven, without the need for tracks, the window is driven by the built in silicone transmission wheel of the window pusher, with a maximum pushing power of 50N, easily achieving window automation. 2. Equipped with personalized timing function, can preset window opening and closing time according to living habits, automatically adjust indoor ventilations, adding comfort and convenience to your dailylife. 3. Integrated with mobileapp control functions, no matter where you are, you can remotely open and close windows with just a touching of your fingertips, accurately setting the opening ratio and giving window unprecedented flexibility. 4. Can be linked with other intelligent devices: When linked with the temperature and humidity sensor, when it detects that the indoor temperature and humidity are too high, the linked window pusher opens the window for timely ventilations and cooling. 5. Left/right installation allowed: Suitable for different window opening directions, the installation of different directions can be set on the app. The flexible adjustment helps use easily. 6. Non marking installation: adopting a non hole design, easily pasted with special glue (not included), without damaging the wall, achieving quick installation. 7. Equipped with a solar recharging system, supplemented by a USB recharging interface, to ensure long lasting and stable operation of the equipment. 8. Voice commands: Compatible with voice Assistant, intelligent control of window pusher with simple voice commands. Specification: Color: white Rated power: 15W Rated Torsion: 0.2N.m Rate output speed: 55r/min Working temperature: 0-45℃ Radio Frequency power: maximum 10dbm Working frequency: 2.405-2.480GHz Battery: 3.7V, 5100mAh Item size: 217 x 61 x 44mm / 8.5 x 2.4 x 1.7in . Package List: 1 x Window Pusher 1 x Fixing Bracket 1 x Wedge Shaped Block 1 x Limiting Device 1 x User Manual 2 x Magnetic Sheet 1 x USB Cable 2 x Screws 1 x Cloth