Product Name:Wallet Card Finder;Usage:Wallets,Bag,Suitcases,Keys or Anything;Battery:5 Year Disposable Battery;Size:86*54*1.6mm;Waterproof:IP68;OEM & ODM:Warmly Welcomed;Certification:MFI FCC CE ROHS;APP:Find By;Working system:IOS Android;Material:Plasti