The Koss KEB9i Earphones - Black is a modern blend of style and sound all in one package. An innovative angled port ensures the perfect fit at the touch of a finger.Small and lightweight, the Koss KEB9i Earphones are great for everyday use. They are perfect for when you are travelling, working or just casually listening.Compatible with all mobile phones and other 3.5 mm jack devices, these earphones have a long 1.22 m cable for more flexible use and positioning. They also feature an in-built microphone.Features- In-ear headphones- iOS / Android compatible- MicrophoneSpecificationsType: In-earColour: BlackConnectivity Jack: 3.5 mm jackCable length: 1.22 mPassive noise-isolating: NoActive noise-cancelling: NoMicrophone: YesVolume control: NoRemote control: NoControl compatibility All smartphonesFrequency response: 18 - 20000 HzImpedance: 16 OhmsSensitivity: 110 dBOther sound features: StereoManufacturer