Specifications Brand PuRuikaiModel HCR 21Noise 65dBBattery Capacity 500mahCharging Time 3 3 5 HoursRated Power 72WPower Input 100 240V 50 60HZWater Tank 40mlMaterial ABSSuction 2500paColor WhiteProduct Weight 1300gProduct Size 215 215 68mmFeature 1 Four bottom corners of bearing type flexible moving but avoid hitting the machine edge with sensors inside it is capable of detecting window that is frame or frameless to avoid falling 2 Use with Security Multi direction anti falling sensors with safety rope equipped The built in 500mAh UPS battery help robot on windows for 20 30mins When the power is cut suddenly the red light flashes and an alarm sounds 3 Intelligent Route via Smartphone APP or Remote There are 2Cleaning Modes in patterns of Z N or Z to N more than efficient more than you expected offers you a new way of window cleaning 4 Simple and Convenient Double sided atomizing nozzle ultra fine water mist is alternately sprayed more evenly and can be filled with fresh water or cleaned non corrosively 5 Easy to Operate The 3 operating modes of one touch button APP control via blue tooth and 2 4G remote control for you to choose and you can choose automatic water spray indicator light flashes and manual water spray indicator light always on Package Includes 1 x Host4 x Cloths1 x Safety Line1 x Power Cord Adapter 1 x Remote Control1 x Water Spray Bottle1 x User Manual