I sow an accident happen. It is horrible.There was a boy riding his bicycle and listening to music. He had a car behind him. Suddenly, out of the driver of the cups on the carpet. She atternpted to pick it up. At that time, the boy suddenly turn left, cars will have to hit him. The driver in time to stop the car. The boy fell off his bicycole.Injury is not serious.So do not listen to music while you are riding a bike!