Sync Display The SYNC feature show both the name and frequency, you can easily view name of the channel and its frequency.DB20-G embeded a large LCD color screen, and its white text color helps read the info clear and quickly. Scan/Add/Remove Channels Customized Scan Range:Allow you to set freq scan upper and lower limits. It's very effective and efficient to scan a range instead of the entire spectrum.Easy to Change Channel List:Channels Add/Remove from the scan list can be utilized via the radio menu directly. DIY Repeater Channels In many cases you have repeaters operating on the frequencies with different codes.Beside the 8 repeater channels, DB20-G has 9 extra DIY repeater channels allow you enter multiples of the same frequencies that differ only by ctcss or DTS codes, which save a big time for hitting a repeater. 12V Cigarette Lighter Plug DB20-G comes with a power cable for connecting to a cigarette lighter in a car, it's more flexible and easy to put away the radio when not in use. NOAA Broadcast There are 7 pre-programmed NOAA weather channel, which is easy to monitor the weather band to be prepared before the serve disaster. Work Seemlessly with GMRS Handhelds DB20-G works well with all the GMRS handheld (we recommend Radioddity GM-30 GMRS handheld), it makes its work efficiently for camping and being able to communicate with your crew! Radioddity DB20-G CPS V2.021. Change the default bandwidth from Narrow to Wide.2. Address the bug that "when repeater TX frequency change, RX frequency automatically match".CLICK HERE to download the latest CPS. Now the Radioddity DB20-G supports CHIRP programming. Features51 CTCSS / 1024 DCS1-9 VOXVOX delayBCL (Busy channel Lock)TOT (Time out timer)DMTFSquelchScan pause timeLCD brightnessTone burstSub channel displayKey beep3 Channel display modeNC (Noise reduction) SpecificationsFrequency Range: TX1: 462.5625-462.7125MHz (5W) | TX2: 462.550-467.725MHz | RX: 136-174MHz, 400-480MHz, 65-108MHzPower: 462.5625-462.7125MHz (5W) | 462.550-467.725MHZ (18W)Channel Spacing: 12.5K/25KChannel Number: 500 channelsOperating Voltage: DC 13.8V±15%Squelch Mode: Carrier/CTCSS/DCS/5Tone/2Tone/DTMFFrequency Stability: ±2.5ppmOperating Temperature: -20°C ~ +60°CDimensions(mm): 124x101x36Weight: 0.45kg (base station)Antenna Port: SO-239Need Antenna with Port: PL-259 500 Channels TableChannel 1-30 (RX and TX): 30 GMRS channelsChannel 31-39 (RX and TX): 9 DIY repeater channelsChannel 40-493 (RX only): 454 VHF(136-174MHz) and UHF(400-490MHz) channelsChannel 494-500 (RX only) 7 NOAA Channels What's in the box?1 x DB20-G Mobile with a Cigarette Lighter1 x Microphone1 x Mobile Bracket1 x Programming Cable1 x Mic Holder (with 2 screws)1 x Fuse(10A 250V)2 x Bracket Screw2 x Non-slip Mat2 x Pads2 x Fixing Screws