Duracell Specialty 2430 lithium coin batteries are made with high-purity lithium for reliable, long-lasting power for your specialty devices. They have up to 10 years of in-storage guarantee so you can be confident these lithium coin batteries will be ready when you need them. To help ensure the safety of your children, they have been designed with Baby Secure pack: Tamper-proof pack with double blister so that it is impossible for a child to open without scissors. They are suitable for use in keyfobs, small remotes, scales, wearables, sensors, medical devices (glucometers, digital thermometers), sports devices (heart rate monitor, bike accessories).