The Kraken 7.1 v2 by Razer, which uses a 50 mm, with Neodymium magnets driver. It uses a USB connection with a 2 m cable. This delivers a frequency response of 12 Hz – 28 kHz and a sensitivity of 123 dB. It also has a Active noise-cancelling on PC, unidirectional MEMS boom microphone with a frequency response of 100 Hz – 10 kHz and a sensitivity of -38 +/- 3 dB. And only weighs in at 346 g.
The Nari Essential by Razer uses a 40mm Neodymium driver. It uses a USB Wireless 2.4GHz connection. This delivers a frequency response of 20Hz - 20KHz and a sensitivity of 107dB. It also has a Unidirectional microphone with a frequency response of 100Hz - 6.5KHz and a sensitivity of -42 +/- 3 dB.