Dimensions: 3.58" W x 3.74" D x 4.49" H (91 x 95 x 114 mm)Net Weight (Unit Only): 3.2 lb. (1.45 kg) Included Brush Head: CLMS-A8 [1.33" (34mm) Dia., Black Core]Brush Diameter: 1.33" (34 mm)Brush Speed: Standard Mode - 550 rpm; Continuous Mode - 650 rpmAC Adapter Input: 96 - 264 v (50Hz)Output: DC 12v (1A)