Murata 337 (SR416SW) is a 1.55V silver oxide battery specifically designed for hearing aids and small electronic devices. This professional-grade button cell battery offers reliable power output and consistent performance. Key features: • 1.55V silver oxide battery • Model 337/SR416SW • Mercury-free composition • Professional grade quality • Designed for hearing aids • Single battery package The battery comes in secure blister packaging to maintain freshness and prevent accidental activation. For optimal performance, store in a cool, dry place and follow proper battery handling procedures. Equivalent to SR416SW in standard battery cross-reference systems.