Packing Included:1 x Mini Vacuum Cleaner (battery is Not Included)4 x Flocking Set (Green， Yellow， Rose， Blue) Material: mop， polyester， alignment protrusion / EVAHeat-resistant temperature: 90 degree CelsiusCold-resistant temperature: -20 degree CelsiusPower: AA batteries x 1 (Not Included)Built-in timer: 15 minutes auto-off timerCorresponding number of tatami: Approx. 1-2 tatamiDriving time: Approx. 5 hoursDiameter: 9cm /3.54"Introduction:This "microfiber hop ball" is a robotic vacuum cleaners. The Mocoro might sound like a bizarre but sophisticated piece of technology - a colorful "fur" ball that rolls automatically around home cleaning - but actually its beauty lies in its simplicity. All you need to do is clean the furry cover and then let the ball do the rest!