1. 3500mAh rechargable battery, no need to connect power supply;
2. Safe rope could adsorbed to glass, so the whole work area is on the glass surface.
3. Super vacuum absorption, build-in water tank, auto sprayer water, good for wet cleaning.
4. Intelligent remote control;
5. Path Planning one time and twice clean( in N shape and z shape);
6. Auto window frame detection;
7. Anti-falling:vacuum suction/safety rope/hook protection;
8. Still work even below -20 degree, so you can use it in winter;
9. Framed or frameless window all support cleaning;
10. 99.7% window coverage;