The Starkey Muse Rechargeable hearing aids harness the same great technology of Starkey Muse hearing aids, in a rechargeable form factor. With just a single 4 hour charge, the rechargeable Muse will provide better hearing for well over 24 hours. These hearing aids come with a small charger included, to allow for easy docking and charging of the hearing aids. Not sure rechargeable hearing aids are for you? You can always revert back to using traditional batteries at any time.