Cooler Master Sirus - 5.1 - Manual (Page 5)

A. True 5.1 Surround Sound, 4 speakers on each side!
B. On-The-Fly Bass, Rear, Front and Center channel control for maximum sound
customization.
C. Interchangeable circumaural weaved and leatherette ear-cups
D. Microphone with LED mute indicator
E. Dual gold-plated USB Connectors for maximum bass boost
Operation
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