Cobra CXR875 30-Mile GMRS/FRS 2-Way Radios Up to 30 Mile Range - Extended range capacity provides up to 30 mile range. (Range will vary depending on terrain and conditions.) 3124 Channel Combinations - Available when the 22 channels are combined with the 142 privacy codes (38 CTCSS/104 DCS), these combinations prevent interference from other radios. NOAA Weather & Emergency Radio - Be prepared for storms and emergencies with the built-in NOAA radio receiver providing coverage of all government operated weather channels. VOX - The user's voice is detected and the radio transmits without the need to press any buttons, freeing hands for other tasks. 5 VOX sensitivity levels allow the user to select at which point the radio will detect their voice. Patented VibrAlert - Provides a silent alert for incoming calls. Ideal for noisy or all-quiet environments.