The Hamilton SCG-AMV Headphone with Goose Neck Microphone is the perfect companion to any of your tablets, Chromebooks, smart phones or almost any mobile device. SCG-AMV features soft leatherette style washable, replaceable ear cushions an easy-to-wear lightweight design with swivel ear-cups and a 4 foot long cord. All these features contribute to fatigue-free use in and out of the classroom. Comes in easy to mark light blue colors. Ideal headphone for testing! **Product Specifications:** **Headphone:** - 40mm Neodymium - Frequency Response: 20-20,000 Hz - Impedance: 32 Ohms - Sensitivity: 105DB+/-4DB - Max. Input: 100MV - Plugs: 1 /8” TRRS Stereo - Cord: 4 Feet, Chew-Resistant, Braided Nylon - Headband: Adjustable - Replaceable Leatherette Ear Cushions - Mac/PC Compatible **Microphone:** - 6*2.5 Type - Sensitivity: -58DB+/-3DB - Frequency Response: 20-20,000 Hz - Impedance: 2,200 Ohms - Operating Voltage Nominal 3V - In-Line Mute Button - 3.5mm TRRS - Mono - Warranty 1 Year