CAN I ADD AN ECHO OR REVERB TO INPROVE THE SOUND

Question

DEAR SIR

MY NAME IS DES LOPEZ I RECENTLY PURCHASED A NEW MIPRO MA101C ABOUT 5 DAYS AGO,I WOULD BE VERY GRATFUL IF YOU COULD PLEASE ADVISE ME IF AN ECHO OR REVERB CAN BE ADDED TO THIS MODEL,BECAUSE THE SOUND ON THIS MODEL IS NOT THAT GOOD AND I WOULD LIKE INPROVE THE QUALITY,NAD WOULD THIS BE A COSTLY THING TO DO, I THANK YOU FOR TAKING THE TIME TO READ MY E-MAIL.

MANY THANKS

DES LOPEZ