Uniden BC906W Bearcat Wireless CB Microphone Communicate outside of your truck with Uniden's BC906W wireless CB microphone. This noise-cancelling speaker and microphone unit gives you added freedom and mobility by connecting wirelessly to your Bearcat CB radio from up to 100 meters away. The CB microphone detaches easily from its charging cradle and syncs securely with the cradle. It uses DECT 6.0 digital format at 1.9 GHz frequency for clear, secure communication. The microphone features a push-to-talk button, an up/down volume control, and three-color LED indicators for transmission status and battery strength. Power-saving features and a convenient USB car charger ensure the microphone stays powered and ready.