3V LITHIUM COIN 2032 BATTERY PACK: One 10 pack of Energizer lithium 2032 Batteries. Packaging may vary POWERS A VARIETY OF DEVICES: Ideal for use as a AirTag battery and medical device batteries; this Energizer 2032 batteries 10 pack is also an ideal power source for your keyless entry system, toys and games 3-IN-1 CHILD SHIELD: The CR2032 lithium 3v coin battery features a 3-in-1 Child Shield with three lines of defense: Color Alert, a bitter coating, and secure packaging (only on select packs) LONG LASTING CR 2032 BATTERY: Our long lasting 2032 coin cell batteries last up to 12 years in storage to provide reliable power when you need it most BITTER COATING AND SECURE PACKAGING: These watch batteries have a non-toxic bitter coating to help discourage ingestion, while the child-resistant packaging helps prevent child access to batteries WITHSTANDS EXTREME TEMPS: Our CR2032 lithium coin battery performs in extreme temperatures from -4 to 140 degrees Fahrenheit for dependable power, even in the toughest conditions COLOR ALERT: Color Alert technology of our CR2032 lithium 3V coin battery AirTag dyes the mouth blue seconds after contact with saliva to indicate possible ingestion