Home Slickdeals Sennheiser GSP 600 Professional Gaming Headset $185.86 Slickdeals Sennheiser GSP 600 Professional Gaming Headset $185.86 [26% off – MSRP 249.95] By ARCOM - 12 February 2018 164 0 SHARE Facebook Twitter Go to the deal page: Sennheiser GSP 600 Professional Gaming Headset $185.86 [26% off – MSRP 249.95]