Improved cell design provides a longer battery life Higher discharge voltage reduces early low battery tones and limits static and unwanted noise Enhanced formulation and construction further extends shelf life Product enhancements support full-feature hearing aids* A pioneering pack Upgraded packaging - Thicker, more robust cards and cartons ensure the batteries are safe during shipping and storage Mercury Free Compliant with EU Battery Directive (2013/56/EU). Wireless approved Improved tabs - 25% larger for easier removal. Ergonomically designed for better handling New, optimised dial - Moulded to the exact shape of the battery and tab. Each and every cell is held securely within the pack