MacVoices #23048: CES - heat it Stops Bug Bite Itch With Your iPhone At CES in Las Vegas, we experienced the heat it device that attaches to your iPhone and uses USB-generated heat to relieve the itch from insect bites. CEO and Co-Founder Lucas Liedtke covered its origins, how it is an FDA-approved medical device already approved and on sale in the U.S., and exactly how much heat it generates.