Sona (Size 13) Mercury Free Batteries

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The Otofonix Sona utilizes a size 13 battery High performance, zinc air hearing batteries Batteries typically last about 4 to 6 days. Battery life is affected by hearing aid usage. To activate: You must remove the tab on the battery, wait 1-2 minutes, and insert into hearing device. This accessory fits the following devices: Otofonix Sona Hearing Aid Show more