do you mean using the pedal on a bike and listening to audiobooks? Ds was 4 in June he has been pedaling for at least ayear now but still has stabilisers on his bike. Ds had always listened to music at bedtime but was growing out of classical lullibies just before his last birthday. So I brought a lot of read and play disney books which range in length from 10 through to 30 mins long. He listens to 1 or 2 after we have read to him and turned out lights at bedtime.
DS is 4 and has never really understood the concept of pedalling, not even when he had a trike, I should work harder at that I think. He doesn't listen to audio books at all although he likes to have books read to him, I think he's quite visual or just very active and doesn't have the concentration for audio.