Razer Nari Essential Vs. Logitech G930
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.
The G930 by Logitech is a 7.1 surround sound channel gaming headset, which uses a 40 mm driver. It uses a Wireless 2.4 GHZ connection This delivers a frequency response of 20Hz - 20KHz and a sensitivity of 90dB SPL/mW. It also has a Cardioid (Unidirectional) microphone with a frequency response of 50-20KHz and a sensitivity of -40dBV/Pa re: 0dB = 1 Pa, 1KHz.