the easy rotary blade per compact body skin convenient for carrying of a travel and a business trip -- dry cell type which can be used easily /■ Specification kind [ of ■ edge ]: -- revolving type and one-sheet edge washing method: -- washing-in-cold-water improper power supply system: -- dry cell type battery: -- an alkaline dry cell (AA x two pieces) (Option) available time: -- about 30 -- day (as 1 1-time 3 minutes per day) size: -- width 4.3x depth 5.8x11.6-cm mass [ in height ]: -- 125g (- dry cell except cap -- it contains) accessories: -- the brush * -- in order [ being comfortable ] to shave and to have a taste maintained, we recommend you to exchange an outside edge and an inner edge periodically. - The 替刃 part number for exchange : ES9392 (替刃 /for a spin network (edge in outside edge +))