Genuine ROBOT CLEANER Neo AIM-ROBO1 Cleaning Robot Vacuum Floor Robotic Import From JPN size: 7.5cm height of about 28 diameter ; weight:1.2kg Material: ABS resin (acrylonitrile-butadiene-styrene) Charging time: about 4 hours Rechargeable battery: Ni-MH batteries Rated voltage: IN/100V 50/60Hz, OUT/18V 300mA