GORSUN GS-131 3.5mm In-ear Headphone for Tablet CellphoneDescription:Brand Name:GORSUNModel Number:GS-131Material:Metal、WiringStyle:In-EarCompatiable with:Cellphone、Tablet and other 3.5 jack output player Frequency: 20-20000Hz Sensitivity of Microphone:-38dB!#!amp!*!plusmn;3dB Sensitivity: 106dB Impedance: 16!#!amp!*!Omega; Driver size: 9mm Plug: 3.5mm Cable length: 120cm    Package Included:1 x 3.5mm In-Ear Earphone Headphones