The HA2 SchoolMate Personal Stereo/Mono Headphones for Education from Hamilton are a great choice for use in schools and other institutions. These affordable headphones allow you to eliminate headphone sharing between children, reducing the spread of head lice. The headphones come with a heavy-duty resealable bag, which kills lice without chemicals in 24-48 hours. The bag can be written on for easy identification. The headphones have an adjustable headband to fit any head size, and the foam ear cushions provide comfortable listening. The headphones have 30mm cobalt drivers to provide quality audio. They also have Hamilton's exclusive patented ASM technology, allowing the headphones to automatically detect whether they are plugged into a mono or stereo audio source. This lets you plug into any piece of audio equipment without worrying about damaging ears or equipment. The headphones have a standard 3.5mm mini plug and operate in both stereo or mono mode.