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