Midland CB Radio 77 Series

There are four CB radio models in 77 series:

77-092 : 40 channels, mounts in virtually any vehicle, and ETR frequency control.
77-104XL : 40 channels, manual tuning dial, and public address capability.
77-120ESP : Switchable ESP-2, front firing speaker, and 7 channels.
77-250CXL : Professional CB radio, ESP-2 noise killer, and new chrome front.