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. Primo headphones are uniquely designed to provide the perfect blend of all of these. Noise reducing earcups allow students to clearly hear their lessons, and protect from unnecessary and distracting ambient noise as well. Chew and kink resistant Dura-Cord™ and 3.5mm stereo plug, these headphones are rugged and reliable, making it a versatile unit to connect to almost any audio device such as tablets, smartphones, computers and more.Details: Blue2 headphones 30mm speaker drivers32 Ohms impedance105dB ±4dB SensitivityTeach listening skills that help develop comprehensive language and literacyWashable leatheretteHeadphones are uniquely designed to provide the perfect blend to help students focus on their lesson Plastic