MODEL- AHS602i VENDOR- ALTEC LANSING FEATURES- 3-D Audio Gaming Headset with Microphone Altec Lansings AHS602i features SRS 3-D Audio technology an audio enhancement technology that provides a realistic and spacious listening experience through headphones. This award-winning technology retrieves the spatial information from surround recordings and restores the original three dimensional sound field. Games and movies have never sounded better!* High Performance 40mm neodymium drivers deliver a wide frequency response and bass you can feel! * SRS 3-D Audio technology thrusts you into the game experience! * Closed ear-cup headphone design improves clarity and minimizes ambient sounds. * Noise-rejecting microphone helps minimize background noise. * Handy multi-function controller regulates volume surround effect and microphone volume (High-Low-Mute) to mazimize communication control. -- SPECIFICATIONs ----------------------------------CONNECTORS - (2) 3.5mm plugsFREQUENCY RESPONSE- Headphone : 20 Hz - 20 kHz Microphone: 100 Hz - 16 kHzIMPEDANCE - Headphone : 32 ohms Microphone: 3.32 K ohmsSENSITIVITY - 40 dB V/Pascal +/- 2 dB (headphone)