From Energizer
- 2-pack Energizer® LR1/E90 Alkaline Speciality Battery- 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 specialty 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