Experience the powerful Altec Lansing sound at a kid?s safe volume. With 85dB of volume-limiting technology your child will be able to listen along to their favorite song or movie at a volume that will not affect their growing ears. With up to 10 hours of battery life these headphones will last during your entire road trip or plane ride. Drained battery? No problem. The Altec Lansing Kid?s Friendly Headphones have a wired auxiliary headphone option to extend their listening.