Fast Shipping On All Items 30 Days Money Guarantee Customer Support Excellent Service 100% Satisfaction Satisfaction Guaranteed We ship to US territories and worldwide. Please contact us if you have any special shipping instructions. Window Cleaner Robot 6.8cm Ultra-Thin, Intelligent Obstacle White and Green Description Features: [Upgrade Planning] The robot can be controlled by one key, voice broadcast, automatic cleaning; when cleaning, it can judge the environment, straight to the top corner, intelligent sensing the edget and stick around moving; after work, it will automatically return to the starting point for easy picking up. [Structural Lightweighting] 2.67inch ultra-thin makes the machine only 2.87lb, but the bottom cleaning area is still big enough. Easy access to the crevices behind furniture for window wiping. [Effective Cleaning] Double-sided atomized nozzle, 18?m ultra-fine water mist, alternate spraying which is more uniform; built-in 50ml water tank, can be filled with fresh water or non-corrosive cleaning supplies for the machine cleans 320-540sq ft; it also supports dry wiping without adding liquid. [Easy Operation] Z/N, Z, N paths 3 automatic modes can be selected. Simulate manual window cleaning mode, alternating left and right water spray, one spray and then one wipe. Able to controlling 4 forward directions and 2 atomized water spray module freely by the remote control and cell phone App. [Use with Security] built-in UPS power failure protection device, the robot still keeps suction of 20min for accidental power failure; equipped with a 267lb load-bearing climbing safety rope, when working, please wrap the rope around a stable point; 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. Product Details: Brand: Vishigh Model Name: HCR-21 Special Feature: automatic_dust_collection Color: White and Green Product Dimensions: 8.5"L x 8.5"W x 2.67"H Included Components: Machine, Remote Control, Cleaning Pads*4, Plastic Bottle Filter Type: Cloth Battery Life: 20 minutes Voltage: 110 Volts (AC) Capacity: 50 Milliliters Power Source: Battery Powered Control Method: App Form Factor: Stick Item Weight: 5.35 pounds Manufacturer: Vishigh Item model number: HCR-21 Batteries: 1 Lithium Ion batteries required. (included) Surface RecommendationController Type: Glass, TileRemote Control, App Control Battery Cell CompositionAre Batteries Included: Lithium IonYes Handling We will ship all orders within 1-3 business day of payment. Delivery We Do Ship Outside of the Continental US. We ship to US territories and worldwide. Please contact us if you have any special shipping instructions. Return Policy Please contact us before returning. All items qualify for returns within 30 days of receipt. All returned products need to be assigned an RMA # (Return Merchandise Authorization #) prior to return. Please contact us through's messaging system to obtain an RMA# for the return. Any returned product without an RMA # on package will not be accepted or processed Feedback We appreciate your feedback and our system will automatically leave feedback for you after bid ends.? Please contact us through message center if you have any problems, we will always try our best for 100% customer satisfaction. We take our reputation seriously, so we understand the value of trust. If you are unsatisfied with your order, please contact us and we will work with you to resolve it to your satisfaction..