DSP304HI is a waterproof horn speaker with built in 70v/100v transformer. The 70v/100v transmission is realized in a high-voltage, low-current mode, which makes longer distance transmission and parallel connection of multiple loudspeakers possible.

This speaker is designed of wide frequency response (400Hz-8kHz); It is made of high quality aluminum, which ensures long-term durability, and will never be out of shape; Waterproof, suitable for outdoor use; Equipped with brackets for installation; Driver surround excellent damping, long life, clear and sonorous sounds.

It can be applied to different occasions vary from area sizes and background noises, such as station, park, school, square, military camp, industrial park, etc.