The Renga by Roccat, which uses a 50mm - Neodymium magnet driver. It uses a 3.5mm connection with a 2.5m cable. This delivers a frequency response of 20∼20000Hz and a sensitivity of 110dB. It also has a omni-directional microphone and a sensitivity of -52dB. And only weighs in at 210g (Headset only).
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.