The Vire by Roccat is a 2 channel gaming headset, which uses a 14.2mm driver. It uses a 3.5mm connection with a 1.2m + 1.3m PC Adapter + 17cm Laptop Adapter cable. This delivers a frequency response of 18~22,000Hz and a sensitivity of 105 ± 3dB. It also has an omnidirectional microphone and a sensitivity of -38 ± 3dB.
The Hammerhead v2 by Razer is a 2 channel gaming headset, which uses a 10 mm, Neodymium magnets driver. It uses a 3.5 mm, angled gold-plated connection with a 1.3 m cable. This delivers a frequency response of 20 Hz – 20 KHz and a sensitivity of 102 +/- 3 dB. And only weighs in at 18.4 g.