If you're passionate about IT and electronics, like being up to date on technology and don't miss even the slightest details, buy Headphones with Microphone HP Blackwire C3225 Stereo Black at an unbeatable price. Type: Wired Earphone Headphones with Microphone Color: Black Control Type: Buttons Width: 155mm Recommended Use: Office/Call Center Features: Noise Cancelling Built-in Microphone Omnidirectional Microphone Handheld 32 Ohm Connections: USB USB-A Headset Type: External On-Ear Power Source: Wired Frequency: 20 - 20000 Hz Sound: 90 dB Control: Headphone Buttons: Binaural