Feature: 1. Auto cleaning mode in three directions to clean the entire window automatically, control it with your smartphone and remote control. The user can control the cleaner via BT, which is matched to your smartphone, which is easy and convenient. 2. This cleaning robot is designed with ultrasonic spray nozzle (35ml water tank), you no longer need to spray water manually, cleaning windows more cleanly and thoroughly. 3. The vertical suction of the powerful vacuum motor is up to 2800Pa, it is not necessary to climb dangerous ladders, automatic detection of window frames and obstacles, intelligent calculation path, professional safety rope, another 20 minutes of absorption conservation when switched off. 4. This window cleaner robot can reach to 5.5M/18ft, no problem for highrise cleaning. (1M/3ft adapter cord+ 4.5M/15ft extension cord). 5. Embedded UPS (Uninterruptible Power System) prevents the robot from falling out of the window even without power. Specification: Specifications: Type: Window Cleaner Robot Output: DC24V, 3.0A Cleaning Speed: 4 mins/square meter Maximum Cleaning Area: 6 * 5 meters Min. Cleaning Area:: 400 * 400mm Cleaning Mode: Manual and automatic Battery Capacity: 14.8V 650mAh Battery Working Time: 20 mins Adhesive Time After Power Outage: Maximum 20mins Remote Controller Powered by: 2 * 3A battery (not included) Noise: 68dB Brushless motor: 2800Pa Water tank capacity: 35ml Item Size: 29.5*15*7.8cm/11.6*5.9*4.7in Item Weight: 921g/32.5oz Package Size: 31.5*23*9cm/12.4*9.1*3.5in Package Weight: 1806g/63.7oz . Package List: 1 * Window Cleaning Robot 1 * Remote Control 1 * Safety Rope 4.5M 6 * Spare Cleaning Rag 1 * Spray Bottle 1 * AC Adapter 1 * Power Line 1M 1 * User Manual