Key Features :
i : Adjustable headband for personalized fit, smaller overall headband to fit younger childrenii : Rugged ABS plastic construction for classroom safety, permanently attached 5.5' straight cord with reinforced "strain" relief connection resists accidental pull outiii : Single 3.5mm To Go plug connects with smartphones, tablets, computers, Chromebooks, computers or a jackboxiv : Flexible electret microphone, ambient noise-reducing earcups lower outside noise so volume does not need to be as high for hearing safety, keeps students more on taskv : Protective slotted baffles inside the earcups cover the speakers and help prevent accidental damage from prying fingers & foreign objectsvi : Yellow