mediocre effort to create a cheap sonic brush better options available [SEP] this product attempts to bring sonic toothbrush technology to the sub price bracket it does not entirely suceed and though nicely designed it is not very effective at its jobthe sonic toothbrush as invented by philips uses a high speed pulsing rpm to use fluid below the gumline to help vibrate dirt and plack off the teeth this process is gentle effective and leaves the teeth feeling and looking very clean i have used these brushes and they are greatthe downside to this marvel is that philips charges roughly for their sonicare brushes oral b has their own latecomer sonic complete model which costs about and a number of lower cost designs that use a more conventional oscillating mechanical head to clean teeththe problem here is the corners oral b cut to bring you a sonic brush the brush vibrates at a much lower speed rpm and though it uses the same brush head as the more expensive sonic complete it does not clean teeth anywhere near as well as a faster sonic brush the speed difference evidently is very significant in the ability of the brush to get the ol chompers cleanif you want a sonic brush spend more money than this if you want a cheaper brush that is fairly effective at cleaning your teeth try the oral b vitality dual action or the oral b cross action power max the dual power head action of these designs though not sonic is a reasonable compromise in getting teeth clean while also keeping price low the vitality sonic just spins its wheels without doing muchthe design and function of the vitality sonic is ergonomic and reasonably high quality but for a low cost cleaning solution buy something else and if you want the high tech sonic experience then spend more