!!!!!Riddle3!!!!!

A magician was boasting one день 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 минуты without using any equipment или 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 Ты figure out how?