Features:* Using high purity oxygen-free-copper core wire rope self-defense techniques， increase the bulletproof fiber， use soft TPE make ouside  scarfskin， effectively solve the problem of 90%  nondurable which cuased by wire， flexibility headset is more durable .<br />* Aviation - grade magnesium aluminum alloy metal fuselage， fastness， texture upscale and exquisite， more fashionable .<br />* Three sizes well-closed skin silicon case， perfect stability ， safe environmental protection .<br />* Composite diaphragm， sound more influence<br />* Ergonomic design， wearing more comfortable and cozy for long time.<br />* Upgraded， new 3.5mm metal plugs ， antioxidant metal strong compatibility <br />Specifications:General Specification  Brand  Elephone  Model  E1  Color  Black， Gold  Wearing Type  In-ear Cable Length (m)  1.2m  Net Weight (g)  16g  Package Size (cm/ inch)  19.1*7.8*2.7cmTechnical Parameters  Microphone  Yes  Wired Control  Support  Plug Type  3.5mm  Rated Power  3mW  Receive Sensitivity  98dB  Impedance  16&amp;Omega;  Frequency Response  20-20kHzPackage  Included:  1* Elephone E1 Earphone  1* pair of earmuffs<br /><br />