Features: brand new and high quality HIGH EFFICIENCY. This USB automatic vacuum with detachable large capacity dust box. Better vacuuming path design, shorten cleaning time and improve efficiency. Ideal for cleaning all kinds of hard floors/flat floors. SUPPER THIN BODY. Thickness only 2.36'', low-profile body allows the Robot Vacuum Cleaner reaches every corner and narrow space with ease. Easily clean about 90-120㎡ room. ULTRA QUIET. Automatic obstacle avoidance. 360 Degree automatically and quietly vacuuming, and no dead ends. Ideal for bedroom, baby room. USB RECHARGEABLE. Built-in rechargeable lithium-ion battery, cleaning performance for up to 80 mins. Quietly and silently thorough cleaning, easy to clean even when working, sleeping. WIDE APPLICATION. Perfect working performance. Suitable for all flat floors such as marble, hardwood floor, ceramic tile, wood floor, etc. Deeply and completely clean dust, hair, biscuit crumbs, cereals, bacterial, etc. Package Includes: 1 Set Robot Vacuum Cleaner Specifications: Material: ABS+ Electronic Components Dry/Wet: Yes Charging Time: Approx. 1-2 hours Working Time: Approx. 80 Minutes Cleaning Area: Approx. 120-150㎡ Rated Voltage: 3.7V Rated Power: 3W Noise Level:≤ 55 db Color: White; Black Size: Approx. 23.5x6cm/9.25x2.36in Weight: Approx. 500g note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!