Midland Radio 4001 40th Anniversary 40-Channel CB Radio 40-channel mobile CB receiver with retro 1960s styling and drift-free phase-lock-loop tuner Dual-conversion superheterodyne receiver, illuminated S/RF/power meter Green LED digital channel indicator, switchable Automatic Noise Limiter (ANL) Slide click-mount, 4-way output power Filter and CB/PA switches, locking microphone connector