ONANOFF BuddyPhones Play+, Wireless Bluetooth Volume-Limiting Kids Headphones, 20-Hours Battery Life, 3 Volume Settings, Voice Enhancing StudyMode, Answer/Playback Button, BuddyLink Cable, Sun Yellow

Gave as a gift so I comment on what I know.

I got this for my 3-year-old, and while the age range is not clearly specified on the product page, these have worked well for him. I have to mention, though, that although hes a pretty average-sized kid, his head has always been huge for his age. Until they stopped measuring at 2 years, his head was always at or close to the 99th percentile. So, these may not fit an average 3-year-old perfect. Theyre definitely adjustable enough that they will grow with my little guy. They even fit my big adult head somewhat well when I tried them out to see how the sound quality and volume levels were. The sound quality is surprisingly good for a reasonably priced item like this, and the best part is that the loudest they get is a comfortable volume, but not enough to cause damage. My son is already somewhat sensitive to loud music, so he wouldnt prefer to listen extremely loud, but Im glad to know that he cant accidentally bump the volume up too loud. The functionality is simple. Connecting to bluetooth is easy and quick, and the connection is reliable, even walking around different parts of the house. My wife and I work from home most of the time, and our son is only in daycare three days a week, so having something like this to let him use while watching educational programs is quite helpful on the days hes at home and we have to work if his grandparents arent available to help out. Overall, recommended for sure!