Specification: Item Type: Window Cleaner Material: ABS+fiber cloth Weight: Approx. 2260g / 79.7oz Power Adapter Input Parameters: 100-240V 50-60Hz Power Adapter Output Parameters: 24V/3.75A Rated Power: 80W AC Power Cord Length: 1.2m / 3.9ft DC Power Cord Length: 4m / 13.1ft Safety Rope Length: 4m / 13.1ft Product Size: Approx. 29x14.5x8cm / 11.4x5.7x3.1in Machine Internal Battery: 14.8V Lithium Polymer Battery 500mah (Included) Remote Control Battery: 2 x AAA Dry Batteries (Battery Not Included) Battery Working Time: 20minutes Cleaning Speed: 4min/Meters Maximum Cleaning Height/Width: Approx. 6x4m / 19.7x13.1ft Minimum Cleaning Size: Approx. 0.35x0.35m / 1.1x1.1ft How to Use: 1. After connecting the power adapter, turn on the machine switch (the blue light is on) to ensure that the fan is working, and then place the machine about 10CM away from frame (for the machine to self-check) 2. Make sure that the machine is tightly attached to the glass before letting go, and make sure that the safety rope and power cord do not affect the free movement of the machine. 3. Press the remote control, the automatic cleaning mode machine will move from bottom to top to the top of the window, and then move zigzag, from left to right, from top to bottom to clean the glass, after cleaning, the machine will return to the bottom starting position , And send out "Didi" to remind users. Package List: 1 x Main Host 1 x Remote Control (Battery Not Included) 1 x Power Adapter+Extension Power Cord 1 x Power Line 1 x User Manual 1 x Spray Bottle 10 x Cleaning Cloth (Contains Parts Installed on Host) 4 x Cleaning Ring (Contains Parts Installed on Host) 1 x Safety Rope with Buckle (Installed on Host)