Ultra Slim – The Most Thin Wallet Tracking Card Anywhere. The KeySmart Wallet Tracker Card is the size of about two credit cards – less than 2mm thick – and the slimmest tracking card on the market. Place it in your wallet, luggage tags and more to locate your missing items.,Compatible with Apple Find My App: Add your KeySmart Card to Find My App on your Apple iOS device. Play a sound on your KeySmart Card to find it nearby with Bluetooth, or locate it through GPS with the Apple Find My Network, with the help of hundreds of Apple devices around the world. Does not work with Android devices.,Get Notified When You Leave It Behind and Lost Mode Helps you Get it Back. The Apple Find My app proactively prevents you from losing your wallet or ID card by sending notifications to your iPhone, CarPlay, or AirPods if you leave your KeySmart Card behind. With Apple's advanced encryption system you have built in privacy that ensures your KeySmart Card won't be tracked by other people.,Wireless Charging with up to 5 months of Battery: No special charging cable required. Reusable and built to last. The KeySmart Card lasts up to 5 months on a single charge, so you don’t have to worry about recharging it every week.,Waterproof & Ready for Adventure: Don’t worry about accidents, spills, splashes, or dips. With an IPX8 rating, the KeySmart Card has one of the highest waterproof ratings possible – just in case you drop it in the pool or the ocean. It can survive up to 1 hour in 1 meter of water.