Specification: Item Type: Window Cleaner Material: ABS Weight: Approx. 1756g / 61.9oz Solution: intelligent drive system Gravity Sensor: support G-sensor Built-in Sensor: support MEMS automatic detection, automatic stop after wiping Power Failure Protection: support UPS, built-in uninterruptible power system, continued power for 25 minutes Cleaning Route: 3 automatic cleaning routes (up, left, right) Brushless Motor: strong power, high speed, large suction, low noise, long life Water Spray Function: support automatic and manual water spray (support APP) Water Spray Principle: atomized film Water Tank Capacity: 35ml Water Source: tap water, special glass cleaner Remote Control: 2.4G wireless remote control Noise: about 68dB Safety Rope: high-strength safety rope, rope buckle Cleaning Speed: 4min/ Erasable Size: Approx. 350x350mm / 13.8x13.8in (minimum) Dimension: Approx. 290x145x78mm / 11.4x5.7x3.1in Power Adapter: 100~240VAC, 50Hz/60Hz DC 24V/3.75A Built-in Battery: 14.8V (650MAh) host built-in battery (battery included) Battery Type: Lithium battery Remote Control Power Supply: 2 x AAA battery (battery not included) Package List: 1 x Host (Battery Included) 8 x Cleaning Cloth (2 Cleaning Clothes are Installed on the Host) 1 x Power Cord 1 x Power 1 x Water Spray Bottle 1 x Safety Rope 1 x Remote Control (Battery Not Included) 1 x Manual