Califone's Pack of 10 3068AV Switchable Stereo/Mono Headphones are durable and all-purpose. It's easy for your kids to switch from stereo to mono sound to fit any application. The 3068AV headphones come standard with a 3.5 millimeter plug and quarter-inch snap-on adapter. Headband is adjustable for a variety of listener head sizes and the padded leatherette ear cushions are both comfortable and easy to sanitize. Dual volume controls allow for individual preferences. Works well with both listening centers and computers.