Power supply mode charging/power dual-purpose
The size is standard, the cleaning method, the brush is clean, and it is suitable for people.
Whether it is waterproof, no motor type, brushed motor
Knife head material, ceramic shell, process spraying (UV paint, rubber paint, metal paint, piano paint, pearlescent powder)
Battery life 0-1h (inclusive)    
Built-in battery capacity below 50mAh (inclusive)    
Whether the built-in battery is built-in, the noise of the built-in battery is 36-45db