The TRB-X4 features TURBO DIGITAL ECHO technology.
Turbo X4 Micro Digital Echo Board - Fits in Any Radio!
The longest echo with the most sound variations, like Endless Echo, Alien Voice and the Big Radio Sound.
Get the clearest and loudest echo avialable, in a board that fits in any radio.
Cyborg Robotic Voice Sound Half Man / Half Machine
Stadium Sound: Have the booming voice of a stadium announcer.
Endless Echo: An unbelievable digital echo with a range from no echo to a never ending, repeating echo.
Double Talker: Repeats everything you say... repeats everything you say. This could get annoying ... This could get annoying. Good thing you can turn it off... good thing you can turn it---
Big Radio Sound: From the smallest radio to the largest, this lets everyone know you have a big radio.