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 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 Earphone Material: TPE Style: 1: Without Microphone, 2: With Microphone Plug Diameter: 3.5mm Plug Type: L-shaped Type Sound Principle: Moving Coil Frequency Response Range: 20-20000Hz Impedance: 16Ω Sensitivity: 96dB Distortion Rate: 1% Conductor Length: 1.2m Horn Diameter: 10φmm Features: Durable, Comfortable Wear, HiFi Sound Size 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 Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.