HamiltonBuhl® Primo™ Series "Tiger" Stereo Headphones One of the building blocks to successful student learning is to teach listening skills that help develop comprehensive language and literacy. Teachers find that students excel when they are more focused on their lessons in classrooms, labs, libraries, and testing environments. These headphones are uniquely designed to provide the perfect blend of all of these. Not only are these headphones ideal for the learning environment, they also have great characters on the ear cups – Meet Primo Tiger! These characters make wearing headphones fun; kids love 'em! Noise-reducing earcups allow students to clearly hear their lessons, and protect from unnecessary and distracting ambient noise as well. Made of ABS plastic, these headphones are rugged and reliable, with a 3.5mm stereo plug, making it a versatile unit to connect to almost any audio device: tablets, smartphones, computers and more.