FreeTalk Talk-8100 Handsfree Stereo Skype Ear Buds with Microphone - Black with White Tips Connector Type: 3.5 mm stereo plug; Cable length: - 113 x 5cm for in-ear headset - 95 x 5cm for iPhone adaptor Earpiece: Frequency response: 100Hz ~ 18KHz; Sound pressure level (SPL): 112dBSPL; Total harmonic distortion (THD): less than 4% Microphone: Frequency response: 100Hz ~ 15KHz; Signal-to-noise ratio (SNR): 60dBA; Sensitivity: -36dBV/Pa; Microphone Impedance: 2200 Ohms; Mic position: Hanging in wire