Product Name:EW-D SK (Q1-6)Manufacturer Part Number:508780Product Type:Wireless Microphone System TransmitterMaximum Operating Frequency:526 MHzMinimum Frequency Response:20 HzMaximum Frequency Response:20 kHzMinimum Operating Frequency:470.20 MHzBattery Run Time:8 Hour12 HourBattery Size Supported:AANumber of Batteries Supported:2Battery Chemistry:AlkalineLithium Ion (Li-Ion)Stock Details:Manufacturer:EPOSManuf Part#:508780