The slim wallet finder works with Apple's Find My on iPhone or Google's Find Hub on Android AirCard Pro Dual is the first credit card-sized Bluetooth tracker fully compatible with 'Apple Find My' and 'Android Find My Device', featuring wireless charging and integrated digital ID. Universal network support Switch from an Apple network to an Android network without having to replace the tracker. Find by Sound Locate objects with the Find My app, Google Assistant or Siri. The 20 mm buzzer emits loud and clear beeps even in confined spaces. Wireless rechargeable battery A 220 mAh lithium-ion cell provides a battery life of up to 12 months and can be fully recharged in 1.5 hours with any wireless charger. Smart notifications and digital ID Receive notifications when you forget something and create a Sherr.it digital ID to share information or find lost items. Robust, quality design Two layers of fibreglass epoxy and a CNC-machined anodised aluminium frame ensure durability, flexibility and an ultra-thin 2.2 mm profile.