1、Wet Dry Dual Use: Dry mopping and wet mopping dual mode, imitating manual mopping, can be dry mopping or wet mopping, to meet various usage needs. 2、Collision Buffer: Humanized collision buffer, can effectively alleviate the impact when colliding with furniture, protect the fuselage while also protecting the furniture. 3、Wide Application: Coping freely on different grounds, adapting to a variety of grounds, intelligent ground recognition with light perception, deep cleaning of ground dirt. 4、USB Charging: Smart robot vacuum cleaner supports USB charging, built in 1500mAh polymer lithium battery, charging time 3h, working time 120min. 5、55db Low Noise: 55db low noise, does not affect rest and health. At the same time, robot vacuum cleaner will create a comfortable life for you. 1 x Mopping Machine1 x USB Power Cord1 x Manual  Item Type: Smart Robot Vacuum Cleaner Material: ABSNoise: 55dbBattery Voltage: 3.7VBattery: Polymer Lithium Battery 1500mAh (Included)Charging Time: 3hWorking Time: 120minColor: As Pictures ShownWeight: Approx. 955g / 33.7oz