Description:Model Number: Longston LangsdomStyle: In-EarConnectors: 3.5mmCable: 1.2M TPE Flat CabldeImpedance: 16ΩSensitivity: 110dBFrequency Response:13Hz-22.5KHZMicrophone: YesPackage Included:1 X 3.5mm In-Ear Earphone Headphones