The Hamilton Buhl Sack-O-Phones 5 x SC-7V Deluxe Headphones with Leatherette Ear Cushions & Volume Control come in a Sack-O-Phone Carry Bag. The Sack-O-Phone packaging is a bag that doubles as a knap sack and holds 5 deluxe headphones. It's a good way to easily store headphones.

The headphones feature an Automatic Stereo / Mono Smart Technology that allows these headphones to be used with virtually all school audio equipment. No need to worry about mismatching headphones between different sources and damaging ears or equipment. No switches to set or special plug adapters required to change; the headphone knows if it is plugged into a stereo or mono system and automatically adjusts. These headphones operate in 1/8" stereo, 1/8" mono, 1/4" stereo, or 1/4" mono modes.

Built with kid's health and safety in mind, these headphones are designed to combat the spread of head lice in schools. Each headphone comes in its own heavy-duty, write-on, moisture resistant, re-closable bag. When sealed in the bag, lice are killed in 24 to 48 hours without the use of chemicals.