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 ...
On Monday, hearing aid maker Signia unveiled the Signia Pure Charge & Go BCT IX, which boasts a battery life of up to 36 hours, including five hours of streaming, on a single charge.
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