Amazon.com: AKG Pro Audio C555 L High-Performance Head-Worn Condenser Microphone, Black : Everything Else
User manual AKG C555 L (English - 64 pages)
Amazon.com: AKG Pro Audio Perception Wireless Microphone System with SR45 Stationary Receiver, PT45 Pocket Transmitter, and C544L Headworn Microphone- Sports Set (3248X00010) : Musical Instruments