Yunsailing 30 Pack Classroom Headphones Wired Headphone

Features: Stereo headset with boom microphone: Our headsets feature an omni directional, reposition-able boom mic for ease of use. The microphone sensitivity is -40dB ±3dB. The boom microphone can be aligned with the headband and out of the way when not in use, allowing for listening only headphone capability. Wide applications: The classroom wired headphones are in black color, simple and classic style, and there is sufficient quantity to meet the application and replacement for schools, classrooms, airplanes, hospitals, libraries, gyms, fitness centers, hotels, travel, and more. Specifications: Material: ABS Color: black Package Includes: 30 x Classroom headphones with microphone Notes: Please allow slight size errors due to manual measurement, please check the size carefully before ordering. There might be a little color differences due to the monitor, camera or other factors, please refer to the physical items.