The Sennheiser PC 2 Chat single-sided headset delivers high quality audio while its passive noise-canceling microphone ensures clear conversation. With simple plug-and-play with dual 3.5 mm jacks for your PC, this lightweight on-ear headset is designed for comfort and for the durability of daily use. Headset Features Plug-and-play 2 x 3.5 mm jacks Unidirectional microphone Skype® certified Durable build