HOBOT-2S automatic window cleaning robot, with dual ultrasonic spray function and smartphone operation. Unused, stored item. I am selling it because I did not use it. Everything in the photos is included. Thank you. - Model Name: HOBOT-2S - Function: Automatic window cleaning robot - Sensor: Sensor to detect window edges - Spray Function: Dual ultrasonic spray - Patent: EXCLUSIVE PATENT - OTA Update: Supported - Uninterruptible Power Supply: Equipped - Operation Method: Remote operation from smartphone