CP0378B Features USB plug on-ear headphones A 1.8 m long cable that is ideal for outdoor use Built-in microphone for you to freely talk with friends Allow you to enjoy your favorite music， games or videos anytime & anywhere Soft ear-pads designed for an ergonomic fit General Specs Brand & Model VYKON   Type On-ear headphones Microphone Yes Speaker Speaker Φ40mm Sensitivity 102dB±3dB S.P.Lat 1KHZ Impedance  32ohm Frequency Response 20-20000Hz Rated Power 15mW Power Capacity 150mW Cable Length 1.8-2.2m Plug Type USB Microphone Microphone Unit 6.0 x 5.0 mm Dia.Electret condenser Microphone Directivity Omni-directional Sensitivity -58dB±2dB Impedance  Low Frequency Response 30-16000Hz Standard Operating Voltage 3V Package Details Weight: 502.90 g Size: 24*17.5*9.5 cm