Logitech 981-000999 H111 Headset for EDU - Stereo sound lets students hear and speak clearly with mic on left or right side. Leatherette ear cushions support frequent cleaning for safe, long wear. [FULL STEREO SOUND] lets students hear and be heard clearly. Students can position boom on the left or right for better voice capture and background noise reduction with [180 ROTATING MICROPHONE]. [ADJUSTABLE HEADBAND, SOFT EAR CUSHION AND LONG CORD] support comfortable wear and fit all day while allowing students to move and stretch when needed. [UNIVERSAL 3.5 mm CONNECTION] fits standard audio jacks to the devices students use, including Chromebooks, Windows laptops and PCs, and iPads. Plus, it's a certified Works With Chromebooks product. LEATHERETTE EAR CUSHIONS] can be easily cleaned after each use for safe sharing and long wear. [DESIGNED AND TESTED TO WITHSTAND FREQUENT CLEANING], meeting CDC guidelines to keep teachers and students safe by ensuring all parts of the headset can be kept clean and disinfected for long-term, shared use. Tested to withstand 2,700 wipe cycles with alcohol; equal to 5 classroom sessions per day, 180 classroom days per year over 3 years. [3-YEAR WARRANTY WITH CUSTOMER CARE SUPPORT] keeps teachers and students working with minimal downtime. Reduced deployment time for large quantities with [EASY-TO-OPEN PACKAGING WITH CLEARLY MARKED SERIAL NUMBERS] for fast unboxing and quick scanning of products without the need to remove each item. Package Contents: Package contents: H111 Stereo Headset and User documentation. Technical Specifications: Input Impedance: 32 Ohms, Sensitivity: Headset: 100dB +/- 3dB, Microphone: -58dBV Bar, -38 dBV/Pa +/- 4 dB, Frequency Response: Headset: 20Hz - 20KHz, Microphone: 100Hz - 16KHz and Cable Length: 5.90 ft (1.8m).