Your special devices require a special level of energy: That's why our Energizer A23 Miniature Alkaline Specialty Batteries deliver reliable power for all your battery-operated devices. Whether it's for your wireless headsets, game controllers, cameras, or medical devices, you'll be confident you're making the right choice with Energizer A23 Miniature Alkaline Batteries. Try them out and see how these miniature batteries go big when it comes to long-lasting performance.