Even the various size ear pieces do not keep this thing from falling out when my father tips his head just a little bit. The amplification is not very good and the battery needs to be recharged after just a couple of hours.
If he wears one of his old real hearing aids in one ear and this amplifier in the other we can have "sort of" a conversation, but I would not recommend spending money on this item.
The old amplifier he had which attached to his shirt with two ear pieces (which also fell out sometimes) worked much better than this one and it cost a lot less.Get more detail about The Stealth Secret Sound Amplifier.