The WAND is a reader.
It's transmitting to your phone.
The Big Bang Theory Season 4, Episode 18
Yeah, it's also a WAND.
The Big Bang Theory Season 5, Episode 10
...my Wand of Untainted Power
and all my gold.
The Big Bang Theory Season 4, Episode 19
The WAND is called showmanship,
and the beep is none of your business.
The Big Bang Theory Season 4, Episode 18
Ah, let's just say the only WAND
The Big Bang Theory Season 5, Episode 12