Description: type: Mini Grinder disc(wheel) type: Cutting Disc power source: Battery grade: Diy Usage: Polishing, Sanding, Deburring, Grinding Brushless Motor: No variable speed: Yes Special Feature: Cordless, multi use, Variable Speed, Compact, ergonomic grip, Lightweight Current: 1A Battery Type: Lithium-Ion Plug Type: Us Plug place of origin: Guangdong, China brand name: Xiaomi model number: Xiaomi Mi Home Electric Grinding Pen rated input power: 5W Voltage: 5V DC Max. Speed: 22,000 rpm frequency: DC dimensions: 184 * 20 * 20.6 mm(7.24*0.79*0.81in) weight: 310g(10.93oz) Product name: Xiaomi Mi Home Electric Grinding Pen Net weight: about 310g Battery type: Lithium-ion battery Plug-in usage: 5V- 3A Charging interface: Type-C Operating temperature: 0℃ to 40℃ Clamping size: 2.35mm Product dimensions: Approximately 184x20x20.6mm No-load speed: 15,000-22,000 revolutions per minute Rated capacity: 800mAh Charging parameters: 5V- 1A Charging duration: Approximately 90 minutes Storage temperature: -10℃ to 45℃ Selling Units: Single item Single package size: 10X10X10 cm Single gross weight: 0.500 kg Location: GODOWN 02 ON 15TH FLOOR KWONG SANG HONG CENTRE NOS.151-153 HOI BUN ROAD KOWLOON HK hong kong