Zero Germ® Utilizes Advanced UV-C Light Technology, One of the Most Effective Sanitizing Methods Also Used By Hospitals & Medical Labs to Effectively Kill Harmful Bacteria. Simply Place Your Cell Phone Inside Zero Germ® and Close the Lid. During a 5-minute cycle, a Powerful UV-C light kills 99.99%of household Germs*. When the External Blue Indicator Turns Off, Your Cell Phone is Completely Clean & Sanitized in just 5 Minutes!