The Uniden PRO505XL 40 Channel CB Radio is ideal for those long days on the road. This Bearcat CB radio uses advanced microelectronics to pack plenty of power and features into a modern, compact design. The 2-way Euro-styled radio offers full 40-channel operation with dynamic squelch control and crisp, clear sound. The backlit display is easy to read, even in low light conditions. The compact CB radio also features an instant channel 9 function where you can quickly set the radio to the emergency/channel 9. You can check the relative strength of incoming transmissions with the signal/RF power indicator. The CB radio has an external speaker jack that will let you plug in an external speaker for better sound as well as an external PA jack that allows connection of a PA speaker.