Steelseries Arctis 9. Product type Headset. Wearing style Head-band. Recommended usage Gaming. Connectivity technology Wireless. Bluetooth profiles A2DP.HFP.HSP. Wireless range 12 m. Ear coupling Supraaural. Headphone frequency 20 - 20000 Hz. Impedance 32 ?. Microphone type Built-in. Microphone frequency 100 - 6500 Hz. Microphone sensitivity -38 dB. Battery life (max) 20 h