CB radio accessories are essential for enhancing the functionality and performance of CB radios. These accessories include antennas, coaxial cables, power supplies, external speakers, and mounting brackets. Antennas are crucial for improving signal reception and transmission range, with options such as whip antennas, magnetic mount antennas, and fibreglass antennas available. Coaxial cables are necessary for connecting the CB radio to the antenna, ensuring efficient signal transfer. Power supplies, such as batteries or power adapters, are needed to provide the necessary power to the CB radio. External speakers can be used to amplify the audio output for better clarity. Mounting brackets are used to securely attach the CB radio to a vehicle or other surfaces.