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-Keep your ears warm effectively in cold weather
on the wall or in the wardrobe
fastens to your vent with a steel mechanism within 1s
can maintain bright and colorful image quality
Hand Crank Siren Horn 110db Metal Emergency -Keep your ears warm effectivelyHand Crank Siren Horn 110db Metal Emergency It is used for emergency warning and easy to carry. Can be used for factories, families, schools, flood control, disaster relief,public and industrial occasions. Timely warning, reduce the loss of people 's property and casualties. By manually rotating the handle, the gearbox of the transmission step by step acceleration to achieve the purpose of sound, the sound depends on the rotation speed of the handle.