So you use it with your headset.

Tan Le A headset that reads your brainwaves

The headset connects wirelessly to an iPad or a smartphone.

Even if I'm there with my friend named Jack, I say, Greetings, Jack. Salutations, Jack.

Child, Jack.

In that headset you have fabric sensors on your forehead and above the ear.

jack of clubs

jack of diamonds

jack of hearts

jack of spades

Base Card Jack

Jack collects stamps.

Jack speaks English.

Jack speaks English.

Jack isn't here.

LG Jack of spades.

Jack of diamonds, correct?

the jack of clubs

the jack of spades

the jack of hearts

the jack of diamonds

Jack resembles his father.

Everybody laughed at Jack.

Jack can speak French.

Jack can speak French.

Jack doesn't drive fast.

My name is Jack.

My name is Jack.

Jack Merridew Jack epitomises the worst aspects of human nature when unrepressed or un tempered by society.

Jack Horner Shape shifting dinosaurs

Jack and Juliet come across Kate and they split up Juliet continues for the Tempest alone, as Jack minds Kate.

She fears for Jack because Ben thinks that she belongs to him, but Jack shows no worry and kisses her.

So here 10, jack, queen, king, ace.

Jack Choi On the virtual dissection table

Like Ralph, Jack is a natural leader.

Jack Horner Building a dinosaur from a chicken

And compared to the tens of thousands of dollars for a traditional EEG system, this headset only costs a few hundred dollars.

And the name came out Jack. I'm like, Woooo!

Jack suddenly stopped talking when Mary entered the room.

The red house is the house that Jack built.

Halloween Jack o' Lantern by Toby Ord, via Wikipedia

Photo by Jack Kurtz, Copyright Demotix (9 29 2009)

Jack insisted on working, as the family needed the money.

But there was one persistent noise that Jansky couldn't identify, and it seemed to appear in his radio headset four minutes earlier each day.

Jack Sock (born September 24, 1992) is an American tennis player.