1. NFC tags are a wireless technology that allows you to transfer data. Different NFC tags hold different data safely.
2.The up side to NFC tags are good because you can move data to other devices safely.
3. The down side to NFC tags is if you drop your phone someone can get in to your car.
4. 5 facts about NFC tags. 1.NFC tags can be used to unlock cars. 2. You can set your alarm to your NFC tags you can put your phone to your NFC tags and it sets it to your phone. 3. They hold a micro chip in a plastic case. 4. You have to put your phone to really close to the tag. 5. They don't need to be recharged.