NHS, are just as good but fit behind the ear which is easily hidden by longer hair. Don't expect too much, they will be a big help in a quiet environment, but in a noisy party or pub they will be no help at all, they will amplify the noise as well.
Private AIDS often fit in the ear, they are fiddly with small batteries, if you have limited dexterity it will be difficult.
Finally don't loose them or let the dog eat them they are expensive to replace.
Static caravan purchase is it worth buying