Very cute kid's bluetooth headset. Charges using included USB charging cable. Using Bluetooth version 4.2, it will connect wirelessly with most of your bluetooth-enabled sources (PC, tablet, iPhone, Android, MP3 player, etc). The sound is good. And it's cute, being a blue fuzzy unicorn.
As we purchased it as a present for our grandson, I modeled it myself for this review. As you can see, it will easily fit any head size (even fat ones like my head), and attaches in the back using velcro fasteners. Charge for a couple of hours then play it for 6-8 hours before it needs recharging. This is ONLY a bluetooth headset, you cannot conect it using an audio cable.