2 pack of Energizer CR2032 Batteries. The CR2032 3V Lithium Battery is compatible as an Air Tag battery, 3V lithium coin batteries enclosed in child-resistant packaging to help keep kids safe from potential ingestion, Long lasting CR2032 battery for car remote key, toys, and health monitors - CR 2032 batteries work as an Apple AirTag battery and also with similar devices, CR 2032 3V battery performs in extreme temperatures from -22 F to 140 F, Energizer 2032 batteries hold power up to 12 years in storage