this review title is: the best kind of toothbrush and the content is: i have used the rechargeable sonicare for years i got this one for trips to pare down on what i have to pack and now i much prefer it since the batteries last for months and i do not have the charger taking up space the battery cap can come loose a bit and allow water and paste to get into the battery area so i am always checking it and giving it a little push back in.there are other information for this review, one is this reviewer did purchase it and the other is 1 people think this review is helpful.