AKG WMS 470 Sports Set is a wireless headset microphone system that offers you the perfect solution to be more flexible than a simple plug-and-play system. AKG WMS 470 Sports Set consists of a PT 470 bodypack transmitter, a SR 470 receiver and a C 544 L headworn microphone. AKG WMS470 headset wireless microphone system has automatic frequency setup function that immediately finds and displays all available channels. WMS470 operates up to 16 channels simultaneously within the same frequency band and up to 48 channels by using multiple frequency bands. AKG WMS470 Sports Set includes the legendary sound of the C544L headworn mic system for maximum quality, performance, and comfort. SR 470 receiver display's backlighting changes in colour to warn the user of such critical operating conditions as transmitter battery running low, audio peaks, or low RF signal strength. WMS 470 Sport Set beltpack transmitter by AKG provides up to 14 hours of use with lithium batteries.