Rumor has it the original design was invented by Windex and given for free to the first company willing to manufacture it at scale... ;-)
Ouch! I'm not sure why yours died so fast. So does mine. Now, when I have checked it by using it without dropping it in the charger it has been good for 21 uses without needing a charge. I'm not sure how many years I've had it, but it was in a 2 pack and I haven't touched the second one. Probably ought to do that some time and see if the battery in that one will still hold a charge.
My battery has been chugging along for years, 2-3 x per day use. I also have the model with the UV light sanitizer - put the brush head in, close the door, push the button and UV comes on (supposedly - how would one know?)
How do you know the tooth brush was invented in Alabama? Because it is called a toothbrush, not a teeth brush.
Neighbors complained about the noise and it's too costly to operate. I think all the original Supersonicares are in museums now.
So far, so good. Wife and I both said there is a noticeably cleaner feeling after using vs regular toothbrush. So far, happy with the purchase. Also, old fillings are still in place as far as I can tell.
