HyperX Cloud II Wireless. Product type: Headset, Wearing style: Head-band, Recommended usage: Gaming. Connectivity technology: Wireless, Frequency band: 2.4 GHz, Wireless range: 20 m. Ear coupling: Circumaural, Acoustic system: Closed, Headphone frequency: 15 - 20000 Hz. Microphone type: Boom, Microphone frequency: 50 - 6800 Hz, Microphone connectivity: 3.5 mm. Battery life (max): 30 h