If I am running errands around town and my toddler gets impatient I just entertain him with an iphone. Unfortunately once you get on a plane the neighbors in the next seats don’t always appreciate the gentle sounds of the “Barnyard Animals App.” We picked up a set of headphones for toddlers last year to use on the airplane and we LOVE them. They are perfect for toddlers, they are designed to not get too loud so they don’t damage hearing. Your kid can listen to Yo Gabba Gabba to his heart’s content and your fellow travelers can browse their copy of SkyMall in peace. But a word to the wise: practice using them for a few weeks before your trip. It took our son a little time to get used to them.