momentary

Thanks for the excellent tip, never would have occurred to me that water would cause a problem for the Bluetooth signal!

What exactly is a knock box? Just any old box?

And you can get such small ones now! My spouse has one she keeps in her purse where the strap is just a thin wire that retracts into the unit. It's not even uncomfortable! Needless to say I'm jealous!

Any particular brand you recommend?

Awesome! Thank you so much, I have floss picks that I hate as they're crappy and break or stretch out before I can do my whole mouth so I end up using two. Definitely printing this when I get home!