Razer Nari Ultimate 2.4GHz Wireless USB + 3.5mm Audio THX Spatial Audio Head-mounted Gaming Headphone (Black)

Headphone Parameters
1. Frequency response range: 20 Hz-20 kHz
2. Impedance: 32ohm (at 1 kHz)
3. Sensitivity (@1 kHz): 107 +- 3 dB
4. Input power: 30 mW
5. Drive unit: 50 mm, using neodymium magnets
6. Inner diameter of earmuffs: width 56 mm / length 67 mm
7. Oval earmuffs: full-face design with cool gel, it can be worn for a long time to maintain comfort
8. Connection type: wireless USB transceiver/3.5mm analog
9. Wireless range: 12m/40 feet
10. Wireless frequency: 2.4 GHz
11. Analog connection: 4 poles
12. Battery life: up to 8 hours when Razer Chroma lighting effects and HyperSense technology are enabled/up to 20 hours when Razer Chroma lighting effects and HyperSense technology are not enabled

Microphone Parameters
1. Frequency response range: 100 a?? 6.5 kHz
2. Signal-to-noise ratio: greater than 50 dB
3. Sensitivity (@1 kHz): -42 +- 3 dB
4. Pickup mode: one-way

Lofelt L5 Haptic Drive Unit
1. 1 in each earmuff
2. Frequency range: 20 a?? 200 Hz
3. Trigger force: 4.3 G
4. Intelligent digital signal processing

System Requirements
1. Computer with USB port
2. Windows10/Windows8/Windows7
3. Internet connection for driver installation
4. 500 MB of available hard disk space