iButton Wands, 10-pack What's an iButton? The iButton is an electronic chip encased in a watertight stainless steel "can" smaller than a dime. The "can" is attached to a plastic keyfob that fits on a keychain. Each iButton has a unique ID number, which is detected by the TimePilot when the employee taps his or her button to it. The iButton has a far longer life than magstripe cards - it's guaranteed for 10 years and works as well in dirty environments as it does in offices - and employees don't feel as fearful about loss of privacy as they do with biometric systems. 10-pack of iButton wands for use with your TimePilot Time Management System