Editor’s Note: This post originally appeared on Lifehacker and was written by Stephen Johnson.

“Despite its toy-like looks, this pocket-friendly multitool can be used for all kinds of hacking and penetration testing. It gives anyone an easy way to interact with the invisible waves that surround us, whether they’re RFID, NFC, Bluetooth, wifi, or radio. Think of it as a hacker Swiss army knife that you can buy for less than…” Continue Reading on Lifehacker