With large battery capacity, its standby time is up to 90 minutes. With bilateral brush design, this product can collect dust in both directions. Made of ABS and metal, this product is more durable and sturdy. The length of the product is 28 cm, the width is 28 cm and the thickness is 6.5 cm. It is suitable for marble, tile, wooden floor and other flat floors. Item Name: Sweeping Robot Material:ABS,Metal Batteries: 1200mAh(Included) Charging Time: 3 Hours Supply Voltage: 3.7V Noise: 55 Decibel Endurance Time: 90 Minutes Size:28cmx28cmx6.5cm/11.02inx11.02inx2.56in Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 X USB Charging Cable 1 X Cleaning Cloth 1 X Brush 2 X Side Brush 1 X Sweeping Robot