ECHO,Delay 600M/S

SPEC.

IMPEDANCE :1k Ω

SENSITIVITY  :-25d at 1K Hz

FREQUENCY RESP. :150~3500Hz

ECHO FREQUENCY RESP. :200~3000Hz

ECHO TIME:300m seconds max

SPEACIAL FEATURE:Relay system roger beep circuit,roger beep transmission time:0.4-1s

CORD: 3M coil cord