This high-power outdoor waterproof loudspeakers has the functions of fireproof, anticorrosion, and waterproof, and can adapt to various extreme climates and different environments. It is suitable for public places such as stadiums, schools, troops, air defense alarms, rural broadcasting, seaside beaches, highways, mines, chemical plants, etc. Features: All-weather design, the shell made by aerospace industry technology, is resistant to acid and alkali, salt spray, and can withstand high-strength impact and vibration. The maximum output sound pressure level can reach more than 128dB at 1 meter, the music effect transmission is more than 350 meters, and the voice transmission distance is more than 500 meters. Aviation composite material, high strength, light weight and good protection performance. Waterproof, dustproof, shock and vibration proof. Ordering Code: RM-150V: 8 inch 100V line 100W, 150W at 8ohm RM-150L IP : 8 inch 150W IP Net audio, Powered RM-150L SIP : 8 inch 150W SIP Net audio, Powered RM-200V: 10 inch 100V line 150W, 200W at 8ohm RM-200L IP : 10 inch 200W IP Net audio, Powered RM-200L SIP : 10 inch 200W SIP Net audio, Powered RM-300V: 12 inch 100V line 250W, 300W at 8ohm RM-300L IP : 12 inch 300W IP Net audio, Powered RM-300L SIP : 12 inch 300W SIP Net audio, Powered RM-400V: 15 inch 100V line400W, 400W at 8ohm RM-400L IP : 15 inch 400W IP Net audio, Powered RM-400L SIP : 15 inch 400W SIP Net audio, Powered