Razer Kraken BT Kitty Edition Wireless Bluetooth with Razer Chroma RGB Headset (RZ04-03520100-R3M1) - Frequency Response: 20 Hz – 20 kHz (44.1 kHz Sampling), Impedance: 32 Ω, Earcups: Over-Ear (Circumaural), Earpads: Plush Leatherette with Foam, Microphone Style: ECM, Microphone frequency Response: 100 Hz – 10 kHz, Volume Control: Yes (VOL + and VOL – Wheel), Battery Life: Up to 20 Hours with Lighting On Up to 50 Hours with Lighting Off, Compatibility: BT Connection: Mobile / System, Connection Type : Bluetooth 5.0 connection