Tim Shank's dogs have implanted GPS chips in case they get lost. Now he has a chip of his own. This is an NFC chip so it's similar to what phones have now days. The Minnesota software engineer had his finger cut open to put this tiny chip inside. There is the chip. Which emits Low frequencies. He programmed a chip to open a smart lock at home. So, that unlocks my door. And, manipulate his smart phone. And, it turned off my ringer. Krissy Heishman from Dallas has one, too. And, it's just a little glass bead, like the size of a grain of rice. She uses hers instead of a key card at work. The online company, Dangerous Things, sells the device and an injection kit for $57 But the implants aren't being done in a doctor's office.>>This is my day to day life.>>Tattoo and piercing shops in several parts of the country are performing this procedure.>>We're doing the procedure start to finish just like we would do an earring, a nose ring, a belly button ring, It's. Just a little piece of glass. Dangerous Things warns customers on it's site. This device has not been tested or certified by any regulatory agency for implementation or use in the human body. Use of this device is strictly at your own risk. Most of our customers kind of understand what they're doing, and they understand the risk. There's always a risk for infection if the procedure isn't done properly. But for shank and others, the risk is worth the convenience. Hannah Daniels, CBS News, New York. [SOUND]