-9-PartsServicePart DescriptionS30161-18 Siren Top ExtrusionP30234-11-1P Siren Bottom Mounting PlateSWH-152 Optional Wiring HarnessP30069-38 Microphone Bracket with ScrewsP30056-16 1/4-20 x 3/8" Hex Locking BoltP30028-23 20 Amp Automotive FuseP30232-1 Noise Cancelling MicrophoneP30208-10 Microphone Strain ReliefP30032-8 TIP36CPowerTransistorS30239-11 Rotary Selector Switch KnobP30147-44 Mounting BracketP30052-40 Case ScrewsSpecificationsInput Voltage 10 - 16 VDC (negative ground)Input Current 8.0 Amps @ 13.6 VDC (single 100W speaker)16 Amps @ 13.6 VDC (dual 100W speakers)Standby Current Switch Off/Backlighting Off - Less than 4 mASwitch On/Backlighting Off - Less than 7 mASwitch Off/Backlighting On - Less than 40 mASwitch On/Backlighting On - ≈ 44 mAAudio Frequency 200Hz - 10 kHz + 3dbOutput Power 105 WATTS RMS MAX. (15.0 VDC - single 100W speaker)200 WATTS RMS MAX. (15.0 VDC - dual 100W speakers)Siren Frequency 675Hz - 1633HzHigh Voltage Protection 16 - 18 VDC will cause siren output to cease, resumes at normal voltageShort Circuit Current 50 AMPS (supply circuit must be capable of supplying this)Operating Temperature -22° F to +140°FDiagnostic Indicator LED indicator provides diagnostic feedbackConnections Detachable 12-terminal connectorSize 6" Wide x 4.5" Deep x 2-1/2" HighShipping Weight 6 lbs.