Radioddity CS-47 CB Radio has most of the features common to other CB radios, including an adjustable backlit seven-color handheld microphone, built-in microphone speaker, AM/FM modulation, VOX hands-free function, and active noise cancellation. However, it is cheaper than models with the same features, making it a very cost-effective one hander CB Radio for outdoor and off-road scenarios. Tiny and Portable At a palm-sized 4'' x 4'' x1'' body and 9.6 ounce weight, this radio is easy to mount on any vehicle. The radio is secured to a universal mounting bracket by two thumbscrews which allow for adjustment at any angle. 7-Color Backlit Display The handheld mic comes with a large 7-color adjustable backlit LCD display and built-in speaker. AM/FM Modulation The CS-47 supports AM/FM modulation so you can use it in America and almost all European countries, allowing you to listen to more stations. Active Noise Cancellation In addition to Automatic and Manual Squelch, the CS-47 featured active noise cancellation technology. This allows the radio to be more flexible in recognizing human voice, making communication with your partner more clear, vivid, and effective. VOX Function Press and hold the PTT button, then short press the “EMG” key to activate the VOX function. After that, you can free yourself from finding the microphone and the PTT button to make it convenient and safe to use your CB radio while driving. CH9/19 Emergency ChannelAn ideal radio for emergency communications or for traveler assistance. Priority should be given to calls for help if you use this channel. Scan Function Press and hold “CH ↓” or “CH ↑” for 7 seconds to start the scan function. This allows you to find and listen to active channels quickly and easily. RF Gain Control The RF gain control (RFG) allows you to adjust the receiving sensitivity between 3dB and 48dB in 3dB increments. Normally, this should be set as high as possible in order to be able to receive stations that are far away. Squelch Control Nine (9) Automatic Squelch (ASQ) for FM and 34 Manual Squelch for AM helps this radio block out background static and noise when receiving. Specifications Frequency: 26.965-27.405 MHz Frequency Tolerance: ±5.0 ppm Frequency Control: PLL Synthesizer Input Voltage: 13.2V, 1.5A Power consumption: Transmit: