The Cloud Stinger by Hyper X is a 2 channel gaming headset, which uses a 50mm with neodymium driver. It uses a 3.5mm connection with a 1.3m + Extension Y-cable(1.7m) cable. This delivers a frequency response of 18Hz - 23,000Hz and a sensitivity of 102 +/- 3dB. It also has a Electret condenser, Uni-directional, Noise-canceling microphone with a frequency response of 50Hz~18,000Hz and a sensitivity of -40 dBV. And only weighs in at 275g.
The Cross by Roccat is a 2 channel gaming headset, which uses a 50mm neodymium driver. It uses a 2 x 3.5mm (3-pin) Mobile/Console: 1.2m (detachable), 1 x 3.5mm connection with a 2.35m (detachable) cable. This delivers a frequency response of 20-20000Hz and a sensitivity of 98dB. And only weighs in at 185g.