Successor to my Oral-B Pro 500, because the battery is now decrepit. the 2500 is twice as fast with 48000 "revolutions", it shows when you brush. Practical: the travel case and visual Anpressdruckkontrollleuchte (what a word: D): when you strongly impresses, it light up in red and you should minimize the pressure to avoid injury. Who can do without Internet in the toothbrush (from Pro 6000) is a good alternative, because it makes for what it was built: just brushing :-)
