4 detection modes in one pen: RF/WiFi signal scan, magnetic tracker sweep, infrared lens finder, and a motion-alarm mode for your door
5 sensitivity levels — dial it down so normal electronics don't cry wolf, dial it up to pinpoint the source
Up to 25 hours per charge — USB-C, the same cable as your phone
Lighter than your car keys (~0.1 lb) and smaller than a marker — lives in a purse, glovebox or carry-on