The MasterPulse Pro by CoolerMaster is a virtual 7.1 surround channel gaming headset, which uses a 44mm driver. It uses a USB gold-plated connection with a 2m cable. This delivers a frequency response of 20~20,000Hz and a sensitivity of 118dB +/- 3dB. It also has a Omni-Directional microphone with a frequency response of 100~10,000Hz and a sensitivity of -34 +/- 3dB.
The ManO’War by Razer, which uses a 50 mm, with Neodymium magnets driver. It uses a Wireless USB Transceiver connection This delivers a frequency response of 20 Hz – 20 kHz and a sensitivity of 112 +/- 3 dB. It also has a Unidirectional microphone with a frequency response of 100 – 10 kHz and a sensitivity of -38 +/- 3 dB. And only weighs in at 375 g.