Turning the handle The volume depends on the speed at which the handle is turned, the faster the speed, the louder the sound. In addition, press the trigger can open the vanes, and the loud will come out. No power support required, just shake the handle to power the handheld siren.
|
Loud The volume can reach 110db, the sound transmission diameter is 0.62 miles, the sound is sharp and penetrating, makes a lot of noise, quickly get peoples attention, which can achieve the ideal alarm effect.
|
Premium and Durable Hand Crank Siren Horn made of aluminum alloy, coated with anti-rust paint outside, more sturdy and wear-resistant, anti-corrosion and waterproof, easy to carry, durable for a long time.
|