Features: Experience long last performances with our A312 Zinc Air Hearing Button Batteries, design to provide high energy density and stable voltages output for hearing aids and cochlear device. These A312 batteries are environmentally friendly and feature a large capacity, reducing the need for frequent replacements. Ideal for all users of hearing aids and in ear devices who seek reliable power solution. Perfect for everyday use in various environment, ensuring your hearing devices function optimally at all times. The compactly button shape makes these batteries easy to carry and install, offering convenience and efficiency for diverse hearing aids models. Specifications: Component:Metal Diameter:Approx.7.9mm/0.31inch Thickness:Approx.3.6mm/0.14inch Voltages:1.45V Package Includes: 6pcs A312 Battery note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.