HP H2500 Headset Suitable for Internet calls and web chats, Listening to music and watching movies or videos, foldable headset Headset frequency response bewteen 20Hz -20KHz, microphone frequency response between 100Hz-10kHz The over-the-head design, complete with an adjustable and padded headband, conforms to head, Cushioned ear pads rest lightly over ears and rotate to adjust to size. Improved sound quality, Noise-cancelling microphone System Requirements: 3.5 mm audio port