Performance characteristics :
Good mobility and invisibility, can be easily placed in various occassions.
SD video player,support any MP3 format,with functions of voice recording.music ,wireless public address,voice amplifier.
Functions with horn ,siren,wail,light control and auxiliary funciton.
Telescopic mast:rapid lifting design--the loud speaker is easy to lift and drop down.
Control box with light background with on/off light and working light.