Rocketfish - Over-the-Head Analog Stereo Headset Over-the-head design With soft leather ear pads provides comfort during extended listening sessions. The adjustable-length headband helps ensure a secure fit. Noise-canceling microphone Located on the earcup features a rotatory, flexible microphone boom to ensure crystal-clear vocal transmission. In-line volume control Enables you to make quick and easy adjustments to the listening level. Compatible with most mobile phones, tablets and other devices With a 3.5mm 4-barrel plug for wide-ranging use. An included Y-cable adapter enables connectivity with most laptop and desktop computers with dual 3.5mm plugs 30mm drivers Deliver robust, powerful audio. 20Hz - 20kHz frequency response Ensures faithful sound reproduction. 112dB sensitivity (3dB at 1kHz, 1V) For rich, dynamic audio. 32 ohms impedance Efficiently conducts power.