What is the Graphene earphones?<br />Earphones using graphene offer superb frequency response. The reason for this is down to the graphene diaphragm&amp;rsquo;s simplicity: Most diaphragms/cones must be dampened to prevent undesirable frequency responses・ graphene requires no dampening. This is because graphene is so strong that the diaphragm can be incredibly thin &amp;mdash; and thus very light. Instead of being artificially dampened・ the graphene diaphragm is dampened by the air itself. Graphene is also very energy efficient which leads to reduced power consumption.<br /><br />Features:1. 3.5mm・ 24k Gold-plated audio jack.<br /><br />2. Prevents oxidation of the contact surface and enhances the conductivity for a richer and purer sound.<br /><br />3. Aviation-grade aluminum. <br /><br />4. Aviation-grade aluminum is diamond cut then carved by CNC.<br /><br />5. In order to make the appearance of the back cavity more exquisite・ we used a Radial pattern processing and finished it off with oxidized sandblasting.<br /><br />Caution:<br />1. Long-term listening at a high volume is not recommended.<br />2. Keep the product away from dust・ moisture・ and chemicals.<br />2. Avoid contact with high temperatures and sharp objects.<br />Specifications:General Specification  Brand BlitzWolf&amp;reg;  Model BW-ES1  Color Black  Wearing Type In-ear  Cable Length (m) 1.2m  Net Weight (g) 15gTechnical Parameters  Compatible With  Smartphones・ tablets・ portable music players and games consoles.  Microphone Yes  Wired Control Support  Interface Diameter 3.5mm audio jack  Sensitivity 102 &amp;plusmn; 3dB  Rated Power 5mW  Impendance 32&amp;Omega;  Frequency Response 20Hz-20kHzPackage  Included: 1 X BW-ES1 Graphene Earphone 2 X Pairs Ear Muffs 1 X Velcro Cable Organizer  1 X Earphone Bag 1 X Using Manual 1 X Warrenty Card