
User Guide SW640 / SW642 Wireless Half Mile Hailer PA System Thank you for choosing the
2 IMPORTANT SAFETY INSTRUCTIONS Before using this product, read the instruction manual for important safety information. Please retain this manual
3 Battery Power 1. The amp uses 10 " D " size Alkaline batteries (not included); or the optional rechargeable Am-pliVox NiCad Battery Pa
4 1. Power Switch. 2. Power Indicator Light. Turns red when power is turned on. 3. Siren Button. Single - Variable tone @125 dBL. Push and hold.
5 WIRELESS SPEAKER SET-UP NOTE: The wireless frequencies used are not on clear channels and may be used by other devices. If the S1244-70 speaker re
6 PROBLEM SOLVING HOWLBACK is the howl or screech often heard in sound reinforcement systems. It is caused by sound from the loudspeaker re-turnin
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