The product's light source consists of three parts: the head glare flashlight illuminates more than 100 meters; the head hemispherical red warning light; the tube body illuminates the white light, and the white cylindrical light source is composed of ultra-bright white LEDs with light diffusion function After being scattered, the white lamp tube forms a lamp post like a fluorescent lamp, which can illuminate an area with a diameter of 10 meters. The sound comes from a 4Ω2W ultra-thin speaker, pre-recorded sound sources such as siren and voice alarm, and can be played as needed. The volume can reach more than 100db. The sound and light cooperate, and the alarm deterrent effect is obvious.