Features*.30000-36000 times vibrating per minute *.2 brushing modes offers varying oral care needs*.2 minutes auto-timer ensures dentist recommended brushing.*.30 seconds reminderhelps you brush each area of your mouth.*.Sonic cleaning， high efficiency; *.Waterproof IPX7， non-slip function; *.Changeable brush head & battery Package Including1 x Toothbrush ( holder with head)3 x Heads (3pcs extra heads)Please Note : Without Battery!