Tooth Polishing Kit:The new tooth polishing kit is specially designed for tooth stain plaque and tartar,which may caused by long-term coffee drinking,smoking and food residue depositing.Note:Not the professional dental use,it is daily teeth cleaning kit. 2 Power Ways:There are 2 power ways for the teeth cleaner,keep plugging into a USB outlet to achieve powerful cleaning effect,or put battery in(2 AA,not include) ,which is convenient to carry when have a travel.Note:Need to plug in if use the USB cable. 3 Working Modes:According to the different sensitivity level of user,the teeth stain remover owns 3 working modes(Soft,Normal,Strong),you can easily choose your ideal working modes.Not:please feel free to contact with us if there is missing parts/. 4 Polishing Heads:Equipped with 4 different polishing tips,3D silicone brush head, polishing massage cup, flat brush, pointed brush,the teeth polisher is convenient to clean the space between the teeth,the teeth surface.(Replacement heads are available: B07XQSG6HB) Wonderful Cleaning Effect:With high frequent vibration,1200/min,the brush head rotates 360 degrees to polish the tooth surface, strong decontamination ability penetrates the place which the ordinary toothbrush cannot reach,and won't cause damage to the gum.