The earphone is marked by oxygen-free copper core wire, so it can achieve high fidelity sound to allow you to better enjoy the wonderful music.Passive noise reduction function enables this earphone to effectively filter out the external noise to make the call clearer.Made of high quality TPE material, this product is flexible, wear-resistant and durable to use.The cable length of the earphone is 1.2m.It can be directly connected to portable digital devices with 3.5mm interface such as smart phone, tablet, PC, etc.Item Name: Wired EarphoneMaterial: TPEStyle: 1: Without Microphone, 2: With MicrophonePlug Diameter: 3.5mmPlug Type: L-shaped TypeSound Principle: Moving CoilFrequency Response Range: 20-20000HzImpedance: 16ΩSensitivity: 96dBDistortion Rate: 1%Conductor Length: 1.2mHorn Diameter: 10φmmFeatures: Durable, Comfortable Wear, HiFi SoundSize Details: Cable Length: 1.2m/47.24'' (Approx.)Notes:Due to the light and the screen setting difference, the item's color may slightly differs from the pictures.Please allow slight dimension difference due to the manual measurement.Package Includes:1 x Wired Earphone