Sennheiser Headset PC 2 Chat (Model: 504194) With the PC 2 CHAT VoIP headset, you can enjoy Sennheiser sound on a small budget. The headset is perfect for families who want to keep in touch with relatives or friends around the world via the internet in clear and comfortable quality. The single-sided wearing style lets you keep one ear free -- so you can listen to your surroundings at all times while chatting.