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Our PRO200 Programmable Hearing Aid uses size-312 batteries. Each battery can last about 7-10 days based on normal usage (10 hours / day)
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FIT BTE Hearing Aid uses size-13 batteries. It will last about 8-11 days based on normal usage (10 hours / day)
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is: 300mm (H) x 11mm (W) x 8mm (D) or 1.18 in (H) x 0.43 in (W) x 0.31 in (D).
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