Razer Shark 7.1 Surround Sound Wireless Gaming Headset with Microphone (Black)

Headset: 1. Frequency response: 12Hz-28KHz 2. Impedance: 32ohm / 1kHz 3. Drive unit: 50mm 4. Connection type: 2.4GHz wireless 5. Battery life: about 16 hours 6. Charging time: about 4 hours 7. Wireless range: about 12m 8. Weight: 408g Microphone: 1. Frequency response: 100Hz-10KHz 2. Signal-to-noise ratio: >55dB 3. Sensitivity: -38dB +/- 2dB