Features:1. The concise unibody metals case looks much more stylish.2. Biotech headphone membranes can reduce sound distortion, improving tone quality.3. Microphone control, start, suspend, cut, etc.4. Vertical plug has perfect compatibility Compatible with cell phone, computer, mp3/mp4 and other audio devices.5. Portability: This product is small in size and light in weight, which is very convenient to carry around.Description:This earphone is made of durable material, stylish in appearance and very clear sound quality, which is very suitable Compatible with daily listening to songs. Specifications:Impedance: 32unfSensitivity: 102dbFrequency range: 20~20000hz Plugtype: normal sizeCable length: 1.2mHorn diamter: 30mmMaterial: pvc Package Included:1 pc * headphonesNotes:1. Please allow 0-1 inch error due to manual measurement. Thanks Compatible with your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.