Power supply: 2 x 1.5V AA batteries(not included).
Width: 7.5cm (2.95in)
Height: 10.5cm (4.14in)
HOW TO USE: Use water and personal favorite soap, makeup cleanser or antibacterial soap in the mini washer. Immerse the brush in water, preferably without touching the bottom, then start the machine and drain it with a hose after washing.