Syba CL-AUD63015 Collapsible DJ Style Stereo Headset with Microphone (Discontinued by Manufacturer) On the Ear Stereo Headset with Detachable Microphone. Padded Headband. Rotatable Ear Muffs. Frequency Response: 20Hz - 20,000Hz. Impedance: 32 Ohms. Rated Power: 100mW.