RF Limited (EC-2024U/D) - Power Microphone with Turbo Digital Echo and TalkBack, Up/Down Controls, Black, Factory Wired, 6-Pin Uniden/Magnum, Mobile Comm. Microphones
ECHOMICD - Power Microphone with Echo 5 Pin Din for Cobra/Uniden
Workman DM1000 Powered Tornado Echo Mic for CB Ham Amateur Radio 4-Pin Superstar
ECHO MASTER GALAXY POWER BASE 4 pin Cobra CB HAM Classic ROGER BEEP MIC | eBay
DELTA EC2 CB Echo Board Turbo Echo Professional IC for CB HAM Radio 2" x 2" Size : Electronics - Amazon.com
Turbo Extreme Microphone with Echo Control | Walcott Radio
5 Pin Cobra/Uniden Galaxy Echo Master POWER BASE MICROPHONE CB HAM ROGER B MIC | eBay
EC-2018XTR Xtreme echo microphone
6 pin RANGER 2995DX 2950 ECHO MASTER GALAXY POWER BASE CB HAM ROGER BEEP MIC | eBay
GALAXY ECHO MASTER POWER BASE MICROPHONE 4 pin Cobra CB HAM Classic ROGER B MIC | eBay
Complete Cobra 29 Chrome CB + Mic Package | Walcott Radio
DELTA EC1 4 pin Cobra CB HAM DYNAMIC MIC AMPLIFER / ECHO CHAMBER w/ ROGER BEEP – WallBuilders
NM-452 CB Echo Power Microphone mic plug & battery wired free for your radio | eBay
DM452X - Twinpoint Superstar Power Echo CB Microphone (Select 4 Pin or 5 Pin Option)
Amazon.com: POWER / Tornado ECHO Mic for CB / Ham Radio 4 pin Cobra / Uniden - Workman DM1000 : Electronics
Workman DM452 Superstar CB Radio 4-Pin Microphone - Walmart.com