AT-500M Ⅱ CB Radio Kit with 27MHz Magnetic Antenna, AM/FM Mobile CB Radio, 40 Channels, NRC Digital Noise Cancelling, NB/ANL, VOX Hands-Free, NOAA, for Trucking & Off-Road

DIGITAL NOISE CANCELLING: NRCdigital noise cancelling keeps voices clear inside noisy vehicle cabins by reducing continuous engine, wind, and road noise during both transmit and receive. Real-time digital audio processing improves speech intelligibility while preserving natural voice tone, making this fixed-mount CB radio suitable for daily driving in diesel trucks or off-road vehicles
VOX HANDS-FREE OPERATION: VOXhands-free operation allows the CB radio to transmit automatically when speech is detected, eliminating the need to press the PTT while driving. Adjustable sensitivity and delay-time control support both quiet and noisy cabins, preventing speech cutoff during continuous talking for safer mobile communication
NB/ANL INTERFERENCE FILTERING: Built-in Noise Blanker and Automatic Noise Limiter reduce impulse noise caused by ignition systems, alternators, and vehicle electrical accessories before it enters the audio path. This minimizes static and crackling commonly heard on AM/FM CB radios, helping maintain stable monitoring during highway driving, voltage fluctuations, or storm conditions