Rayovac Extra Hearing Aid Batteries. 🟡 Rayovac Extra Size 10 – Yellow. 🟠Rayovac Extra Size 13 – Orange. 🟤Rayovac Extra Size 312 – Brown. 🔵Rayovac Extra Size 675 – Blue. With a consistent power output and user-friendly yellow tab, they’re designed for easy handling and dependable performance in smaller digital aids.
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