Songbird's Flexfit and Ultra products use standard 312 zinc air hearing aid batteries.
A standard 312 hearing aid battery lasts up to twice as long in the Songbird Flexfit as it does in other hearing aids, leading to less battery changes overall.
The Songbird Flexfit comes with 2 free batteries, while the Songbird Ultra comes with 6 free batteries. Order your replacement sets today, directly from Songbird!