Yunsailing 30 Pack Classroom Headphones Wired Headphone

Feature: Reusable: Bulk headsets with microphone are not disposable earphones, durable, practical, and can be applied repeatedly for a long time, to greatly help enhance concentration, learning and standardized testing experience. Universal headphone plug: The 3.5 mm jack headphones are compatible with 3.5 mm jack devices that work with most phones, computers, laptops, fitness equipment and are a good choice for classroom use and school testing, centers, hotels. Specifications: Material: ABS, PVC Color: black Size: Headphones: about 5 x 7 inches Headphone cable: about 1.5 meters/ 4.92 ft long Package includes: 30 x Headphones with microphone Warm reminders: Due to different screen display effects, there may be a slight error between the color you see and the color of the product you actually receive. Since the dimensions are all measured by hand, please allow 1 - 2 cm error. Winding risk may exist, please keep away from children. Please confirm the jack size before placing an order