EPOS Sennheiser Headset w/ Microphone: GSP 300 Wired Gaming $20, C20 Wireless $60, GSP500 Wired $60, GSP 670 Wireless $120 + Free Shipping w/ Amazon Prime

Woot! has EPOS Sennheiser GSP 300 Wired Gaming Headset w/ Microphone on sale from $19.99. Shipping is free w/ Amazon Prime, otherwise shipping is $6.
Available:

• EPOS Sennheiser GSP 300 Wired Gaming Headset w/ Noise-Cancelling Microphone $19.99
• EPOS Sennheiser C20 Wireless Headset w/ Microphone $59.99
• EPOS Sennheiser GSP 500 Wired Open Acoustic Gaming Headset / Noise-Cancelling Microphone $59.99
• EPOS Sennheiser GSP 670 Wireless Gaming Headset w/ Noise-Cancelling Microphone $119.99