NOISE-CANCELING EXTERNAL ;CB SPEAKER WITH TALK-BACK; 15W CAPACITY; 4 inch DIAMETER; 8 OHM 5. 5-OZ PERMANENT MAGNET DRIVER; COATED SPEAKER CONE, ;MYLAR CAP, HEAVY-DUTY CONSTRUCTION & METAL ;MESH GRILL; EARPIECE JACK; RATCHED SWIVEL MOUNT; 10-FT CORD...