Never lose your valuables with the help of a rechargeable, credit card-shaped MFI Air Tracker. This card is thin, yet durable and easily fits in your luggage, wallet, purse, and much more! It's compatible with the Find My App on iPhones - open the Find My App and click "Add Item" to connect. Charge it once, and it will last up to 2 weeks. Show off your brand with a full-color imprint! Note: Android devices are not supported.