Keep your hearing aid or sound amplifier powered with this 120-pack of Ansmann size 10 yellow zinc air batteries. These 1.45V mercury-free batteries are air-activated for reliable performance and long shelf life, making them a cost-effective replacement for CIC, ITC, and ITE hearing aid models. Each battery measures 5.8 x 5.8 x 3.6mm and offers a durable power source with a shelf life of up to 4 years. Simply remove the sticker, wait one minute for activation, and insert for consistent hearing support.