Pack of 100 Headphones. Give guests, members, students or customers brand-new headphones for personal audio use. Ideal for schools, fitness centers, spas, gyms, educational use, hospitals, libraries, computer labs, hotels, motor coaches, libraries, rental cars, trains, museums and more. 3.5 mm (1/8 inch) stereo plug works with iPods, iPhones, iPads, Chromebooks, Tablets, Computers, CD Players, Fitness and Audio Equipment. Cord Length: 4 Feet.