This kind of equipment is specially used to deal with people like Ma Biao.

The device is completely soundproof and absorbs all sounds from the human body.

It can make people feel like they are deaf.

Obviously, Ma Biao was already a little hysterical at this time.

He lay on the ground weakly, and could even faintly hear the sound of his own heart.

After seeing this scene, Yang Qinghu instructed the people around him.

"Give him a notebook."

A notebook was handed to the room.

Ma Biao naturally picked up the notebook immediately, only to find that there were so many words written on it.

"Confess everything!"

Suddenly

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