AKG SR40 PRO Microphone Single Wireless Stationary Receiver No AC Adapter Blue | eBay
Amazon.com: AKG Pro Audio WMS40MINI Vocal Set Band US25D Wireless Microphone System, with SR40 Receiver and PT40 Mini Pocket Transmitter : Musical Instruments
AKG UHF SR40 Ultra High Frequency Wireless Stationary Microphone Receiver | eBay
Amazon.com: AKG Pro Audio WMS40MINI Vocal Set Band US25B Wireless Microphone System, with SR40 Receiver and PT40 Mini Pocket Transmitter : Musical Instruments
SR40 MINI | Single wireless stationary receiver
AKG UHF SR40 Ultra High Frequency Wireless Stationary Microphone Receiver | eBay