● 1 minutes digital REC / PLAY IC ● Record Level control ● Output volume control ● Friendly control panel, easy for use ● Alarm triggering and siren or recorded signal output
Military Long Range Acoustic Equipment is So "Advanced"February 5, 20211. What is long range acoustic device?The long range acoustic device has strong directivity and long propagation distance. It controls the sound emission direction at ± 15 ° or so. Just like the fla...view