Multi-Channel/Professional Wireless Handheld Microphone (320-1230) Specifications Faxback Doc. # 18289 Sensitivity........................................100 dB SPL @ +/-7 kHz FM Frequency Response.............................................100-10,000Hz RF Output Power................................................ 50 mW (Max) Current Consumption..........................................30mA (Average) Battery Life (Alkaline)...................................8 Hours (Average) Operating Frequencies: Channel Frequency (Mhz) A................................................................169.445 B................................................................169.505 C................................................................170.240 D................................................................170.300 E................................................................171.050 F................................................................171.110 G................................................................171.845 H................................................................171.905 (CS 11/15/95)