The Nomad Tracking Card is a credit card-sized tracker that works with the Apple Find My app.It has a thickness of around two standard credit cards, making it suitable for most wallets.The battery life lasts for five months on a single charge and can be recharged by placing it on a Qi or MagSafe charger.The Tracking Card works with the Apple Find My network, allowing you to track its location using the app on your iPhone.