Feature: 1. Clear Alarm Horn: Combining high brightness LED and large volume siren, the alarm horn can give you clear warning for your working safety. 2. Smart Adjustment: From 0 to 130dB, the audio horn supports 7 tones adjustment, which will surely satisfy your needs for different occasion. 3. Reliable Working: Low in both noise and power consumption, the alarm light siren is very sturdy with impact, works with great reliability. 4. Wide Application: Allows for broad application in mining, quarries, sand fields, forest farms, port machinery, mechanical industry, etc. 5. Quick to Install: Comes with a compact size and a light weight as well, the IP65 waterproof audio siren is very convenient to install. Specification: Item Type: Alarm Siren Plug Specification: US Plug 110V Power Frequency: 50-60Hz Working Current: 16A Power Supply: 600W Working Temperature: -30?? ~ 60?? Volume Adjustment: 0-130dB Volume Adjustment: 7 tones adjustable. Protection Level: IP65. Package List: 1 x Alarm Siren