Favoritz line of headsets are cool for school and at home, too! The latest design has a sleek appearance and offers rugged durability and comfort for everyday use. Featuring a 3.5mm TRRS plug, an in-line microphone with our exclusive 5' Dura-Cord – the chew, kink and knot-resistant, PVC-jacketed, braided nylon cord, soft leatherette cushions and an adjustable headband, everyone will be glad to sport this mid-sized headset. Compatible with all devices with 3.5mm audio jack, this headset is ideal for the classroom, library or home; for individual use and testing too! Specifications Design: Mid-Size, Over-Ear Cushions: Leatherette, replaceable Headband: Adjustable Plug: 3.5mm TRRS stereo, 120° angle, thin barrel Cord: 5' Dura-Cord™ - chew-resistant, PVC-jacketed, braided nylon Headset Speaker Drivers: 40mm Headset Frequency Response: 50Hz-20KHz Headset Impedance: 32Ω Headset Sensitivity: 100dB ±4dB Mic Type: In-Line Mic Sensitivity: -42dB ±3dB Mic Frequency Response: 50Hz-16KHz Mic Impedance: 2,200Ω Storage Bag: Heavy-duty, write-on, moisture-resistant, reclosable bag. Helps prevent the spread of lice! Prop 65 Compliant In-Line Mic Button Functions: Press & Release (Smartphone/Tablet) - Call answering/Call ending/Media Player Play & Pause In-Line Mic Button Functions: Press & Hold (Smartphone/Tablet) - Mute/Activate Voice Control Assistance (ex.: Siri) In-Line Mic Button Functions: Press & Release (Laptop/Desktop/Chromebook) - Does not control any functions In-Line Mic Button Functions: Press & Hold (Laptop/Desktop/Chromebook) - Mute while communication apps are running (ex.: Vonage, Skype, Zoom, Etc.)