Displays forehead temperature when placed around a few inches away. Reading is in degrees C. Green LEDs light if normal body temperature. LEDs go red if outside normal body temperature. Beeps once for good temperature, twice for 'oh no you're not well'! Can be wall mounted. Micro USB powered. Cable supplied. Does not come with power adapter. Still has protective film on the display. Has very minor scuffs to the rear, other than that is in perfect cosmetic and functional condition.