The CA-102 Replacement Cords fit our EH-3S & EH-3SV headphones which deliver performance at an economical price for teachers who are using a blended learning approach that mixes face-to-face instruction time with personal digital learning. Ideal for use with listening centers and in libraries, this headphone is designed to give maximum flexibility so K-12 students can easily move from the monaural content of ELL/ELD activities and speech pathology uses to the stereo requirements of computers, gaming, online learning, music appreciation classes and 21st century learning using mobile devices such as smartphones and tablets. Califone CA-102 Replacement Cords for the EH-3S & EH-3SV Headphones.Common Core Headphone Accessory Solution for the Classroom.