The HS50 by Corsair, which uses a 50mm neodymium driver. It uses a 3.5mm, Y-adapter (female 4-pole 3.5mm to dual male 3-pole) connection This delivers a frequency response of 20Hz - 20 kHz. It also has a Unidirectional noise cancelling microphone with a frequency response of 100Hz to 10kHz and a sensitivity of -40dB (+/-3dB).
The Cloud Revolver by Hyper X is a 2 channel gaming headset, which uses a 50mm driver. It uses a 3.5mm plug (4 pole) + Audio Control Box - 3.5mm stereo and mic plugs connection with a 1m + Audio Control Box (2m) cable. This delivers a frequency response of 12Hz - 28,000 Hz and a sensitivity of 104.5dBSPL/mW at 1kHz. It also has a Uni-directional, Noise-cancelling, Electret condenser microphone with a frequency response of 50Hz-18,000 Hz and a sensitivity of -40dBV (0dB=1V/Pa,1kHz). And only weighs in at 376g.