Sennheiser PC 150 Binaural Headset with Noise-Canceling Microphone and PC/Laptop connectors (Discontinued by Manufacturer) Headphones designed with the serious gamer and surfer in mind; provides hours of comfortable use Includes a precise, noise-canceling microphone with an adjustable rest position Includes two 2 x 3.5 mm connectors for PC/laptop Compatible with CD, DVD and MP3 players Ideal for telephony uses