IP5266B Features 3.5 mm on-ear headphones Specially designed for Apple devices， such as iPod， iPhone， iPad， etc. 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 MQ33 Type On-ear headphones Microphone Yes Speaker Speaker Φ40mm Sensitivity 102dB±3dB S.P.L at 1KHZ Impedance  32ohm Frequency Response 20-20000Hz Rated Power 15mW Power Capacity 150mW Cable Length 1.2m Plug Type Φ3.5mm Stereo 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: 311.37 g Size: 20*19.5*7.5 cm