With Energizer being a decades-long worldwide leader in small electronics batteries, you can rely on the precision engineering of these batteries to power all your small electronic devices, from glucose monitors and fitness trackers to the latest games and toys. Energizer is the world's No.1 speciality brand.  Energizer watch electronic batteries deliver long-lasting, dependable power for your coin-battery-operated items. Specifications 2-Pack Energizer LR1/E90 Miniature Alkaline Battery, delivering long-lasting, reliable power to your gadgets Compatible with a variety of devices, including your camera, video game controllers, Bluetooth headsets, and glucose and blood monitors Holds power for up to 5 years in storage, ensuring you have speciality batteries ready when you need them Cell size: E90/LR1; Type: Miniature Alkaline; Volt: 1.5 Replacement for: 4001, 810, 910A, AM5, LR1, MN9100, UM-5 Energizer Speciality Batteries are built to meet the requirements of today's high-powered devi