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;amp;Omega;  Frequency Response  20-20kHzPackage  Included:  1* Elephone E1 Earphone  1* pair of earmuffs<br /><br />