Instead of having a rechargeable battery, the CRE-C10s rely on size 10 batteries (which you can buy wherever hearing aid batteries are sold). With each set of batteries, you get up to 70 hours of ...

There are four standard sizes of disposable hearing aid batteries: 10, 312, 13 and 675. These battery sizes are associated with a given color, as seen in the above table. These colors can be found ...