I tested the toothbrush Oral B Pro 7000 trizone white. She is very professional, complete and high tech. You can connect your smartphone to the toothbrush via an application, following our brushing every day and gives us brushing advice. There is also provided with a housing which is also connected to the bluetooth brush that controls the brushing time. All this is very fun especially for young children. There a circle divided into 4 that tells us when to change from mouth quarter, the toothbrush vibrates at that time and when brushing is completed a smiley appears on the box and the toothbrush vibrates slightly Longer. This toothbrush has 6 brushing modes: normal; Intensive, whiteness, sensitive tooth, tongue cleaning, gum care. It detects the mode and therefore chooses brushing time depending on the selected mode. It also has sensors that detect when pressed too, a red light comes on. This really is a great toothbrush on all points, plus the battery really takes a long time (about a week). You must try also all the brushes of the range and choose the most suitable for her and brushing her tooth type.