I am satisfied with the 20 Pack Class Set Headphones for Kids Students School Classroom Bulk Earphones Adjustable with 3.5 mm Jack for Library Children Adults(005 Multi Color Headphones).These headphones have really good sound, considering the price. These sold in a package of 20 for just $23.99 at the time of this review. That makes them roughly $1.19 each! I opened one and plugged it into my MacBook Pro and listened to a chapter of an audiobook I own. The sound was just fine. The volume was good, and there weren't any odd sounds or noises.The headphones look fragile. They are made of a thin plastic that I could probably snap in half without much effort. Although these are marketed for Kids, I think it's important to notice that they say "kids students school classroom". These are for older kids, not toddlers. Older kids know not to be rough with them, not to throw them or stand on them.I like that the ear pieces can fold in when not in use, and fold out to cover your ears. That might help protect them some from damage in students' backpacks. I like that the plastic headband was snug, but not tight enough to give me a headache. The cord is long enough to reach the computer or other device, but not so long that you could trip on it.If you're in need of multiple headsets for young students, this is a great bundle. If you just need one set of headphones and you want an outstanding sound experience, you should keep looking.