When customer buy a product he get it with closed QR code on a package, so if he want do not lose warranty as paper usually get lost he can open QR code scan it and get warranty prof to Enjin Wallet.
As example in China there is almost 3 million factories. Factory will earn on tx when this QR code will change its owner.
I was working with Chinese for around 10 years. Would love to start offer this service to them.