EP0523R Features USB plug on-ear headphones A 1.8-2.2m long cable that is ideal for outdoor use Built-in microphone for you to freely talk with friends Superb stereo sound quality   Soft ear-pads designed for an ergonomic fit  General Specs Type On-ear headphones Microphone Yes Cable Length 1.8-2.2m Plug Type USB Plug Headphone Type On-ear Speaker Φ40mm Sensitivity 102±3dB S.P.L at 1KHz Impedance  32Ω Frequency Response 20Hz-20KHz Rated Power 15mW Power Capacity 150mW Microphone Microphone Unit 6 x 5mm Dia.Electret condenser Microphone Directivity Omni Direction Sensitivity -58±2dB Impedance  Low Frequency Response 30Hz-16KHz Standard Operating Voltage 3V Package Details Weight: 360.59 g Size: 22.5*19*8 cm Package Includes 1 x USB Data Cable