Special devices require a special level of energy: That's why our Energizer LR1/E90 Specialty Batteries deliver dependable power for all your battery operated devices. Whether it's for your Bluetooth headsets, game controllers, cameras, or medical devices, you'll be confident in making the right LR1 Miniature Alkaline Battery choice with Energizer. Try them out and see how these miniature batteries go big when it comes to long-lasting performance.