Razer Kraken Wired Gaming Headset (RZ04-02830400-R3M1) - Frequency Response: 12 Hz – 28 kHz, Impedance: 32 Ω (1 kHz), Earcups: Cooling Gel-Infused Cushions, Earpads: Heat-Transfer Fabric / Leatherette/Memory Foam, Microphone Style: Retractable Unidirectional Microphone, Microphone frequency Response: 100 Hz – 10 kHz, Volume Control: In-line Analog Volume Control Wheel, Compatibility: Cross-Platform, Connection Type : Analog 3.5 mm, Color: Mercury