!!!!!Riddle3!!!!!

A magician was boasting one araw about how long he could hold his breathe under water.His record was six minutes.A kid that was listening said"thats nothing,I can stay under water for ten minutos without using any equipment or air pockets.The magician told him if he could do that, he would give him $10,000.The kid did it and won the money.Can you figure out how?