Califone® jackboxes are the most cost-effective way for educators to expand the number of students who can participate in small group sound field activities. Whether creating groups of 2 or more, these jackboxes ensure that each student can use a headphone to listen and read along with the rest of the class and not be left behind. Whether the classroom technology utilizes a ¼" plug from a boombox or the need is to stream audio from a computer through a USB port and capture verbal responses, Califone® offers a variety of stereo and monaural jackboxes that meet the demands of growing classroom sizes, including 3 brightly colored jackboxes that will appeal to younger listeners.