You'll be glad to hear that: Energizer now offers the most durable hearing aid batteries ever. PowerSeal technology protects your devices from battery leakage. These batteries deliver consistent sound quality throughout their life for a better listening experience. User-friendly EZ Turn & Lock rotating pack: The batteries are easy to remove and can be easily inserted into your devices thanks to extra long tabs. Unused batteries are stored safely. Trust Energizer's performance and enjoy listening to everything the world has to offer.