This rechargeable electric toothbrush is sold at an attractive price, well below that of the market leader. Does it provide for much brushing as efficient and pleasant, not quite in my opinion, probably because its rotating head is not as effective as the mechanism proposed by Oral B. Indeed one has the feeling that the device vibrates ViaMichelin, which is quite unpleasant. Every 30 seconds a beep sounds allowing dobserver optimal brushing time of 2 minutes Recommended, but it also the offer competition. With nearly 30,000 movements per minute, plaque is removed and we feel a sensation of cleanliness, power impression however is lower than that experienced with the oral product B. The "Easystart" proposed allows to adapt gradually during the first 14 brushings to rigorous brushing. As for the battery, 2 brushings per day after 10 days I was able to see what was still sufficient. We can expect a period of two weeks as promised by Philips. Electric toothbrushes have made much progress in recent years and competition is very tough now. The product offered by Philips is a very good value for money.