Rayovac Extra Advanced, size 312 Hearing Aid Battery (pack 60 pcs)
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<b>[Product Information]</b><br>
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<li>Three to Four Year Date Code - longest available</li>
<li>Made in the USA.</li>
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<img src='http://ecx.images-amazon.com/images/I/51NmKZ8ay%2BL.jpg'></br>
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