Oral-B 7500 Electric Toothbrush with 3 Replacement Brush Heads & Travel Case - Black - Advanced Clean for Sensitive Teeth & Gums - Perfect for Home & Travel Use

We have some Oral-B Pro 1000 units. One of them died, when the battery got too old to take a charge. I was going to buy the same moe for about $40, but caught this one on a one day sale for $90. Since it has multiple modes, supposedly a better battery and some accessories like a charging dock and travel case, I figured I'd give it a shot (Oral-B does offer a 60 day satisfaction guarantee).The unit comes with three brush heads: Cross Action, 3D White, and Floss Action.The 7500 cleans very well, and has 6 different modes as well as the ability to set a timer for 2 minutes or 30 second intervals. It has an LED ring at the neck which is white but will change red if you apply too much pressure.It charges reasonably fast (a couple of hours the first time) and holds its charge great. The charger itself is the standard Oral-B unit but fits onto a covered case which holds 4 heads. The cord is about 3 feet.The travel case is white plastic, and holds a brush and two heads.The modes are as follows:* Daily Clean* Pro-Clean (Deep Clean on older models)* Sensitive* Whitening* Gum Care* TongueMy sole complaint about 7500 is the user manual. It is written for multiple models, so while some mode icons are obvious (a tongue for tongue cleaning), you are left to guess the others. They are:* Daily Clean - No icon lit except for power and bluetooth lights* Pro-Clean - Tooth with a + sign* Sensitive - Feather* Whitening - Diamond* Gum Care - "Waves"* Tongue - TongueThe 7500 also is bluetooth, so you can download the Oral-B app on your phone and use it to monitor your brushing habits. The app works decently enough and the bluetooth connectivity seems consistent. I consider the app a nicety, not something I need to know if I brushed for 2 minutes. It will remind you to change brush heads too.Overall, I don't know that this cleans that much better than the 1000 but I like the extra battery life and having a few more modes.