[masraum]

We've been using an electric Oral B for probably 7-9 years. Ours was pre-BT. It came with a little timer with an LCD that communicated with the toothbrush. The brush itself also beeps and vibrates at intervals (you can set it to 30 secs or 45 secs, I think, default is 30 secs, IIRC). I think the BT is to replace the little timer. I don't think we've had the timer for ours for at least 6 years. You don't need it and you don't need to use the BT, I wouldn't think.

THere are 4-5 different heads that you can get. I have the small round head, but the missus likes a different one. I like the way it works. If I travel and use a regular toothbrush, I find myself missing the electric one.