Hair Pickup Sweeping : Automatic Robotic Mop Sweeping with Low Noise Mute Technology . Excellent for All Kinds of Pet Hair and Dust Pick up. Attracts and Retains Hair,Fluffs and the Finest Dust . Replaceable Cleaning Cloth: Easy to Change Cleaning Cloth. Replaceable and reusable Cleaning Cloth,Attaches Easily to Base for All Hard Floor: Wood, Marble, Cement, Ceramic Tile. Autonomous Navigation System: Change Direction Automatically When Detects Objects and Walls to Proceed to Next Place.Self Rotation Cleaning Power Enhances Cleaning Performance. It sweeps the floor while you are away or you can do something other when it works for you. Save a lot of time for you. Cute and Ultra Slim Design: Ultra Slim with Cute and Pretty Pattern Compact Design Make It Can Sweep Under the Furniture of Height 66 mm . Flexible Base. Especially Designed to Reach Corners and Along the Walls. Charging Protection: Built-in 3.6V,NI-CD,800mAh Rechargeable Power Battery with Micro Controller ,Overcharge and Overdischarge Protection .Full Charging Time is 3 Hours for About 100 Minutes Working Time.