Frequency range: 132KHZ - 30000KHZ, suitable for AM, SYNC, SSB, DIGI; 64MHZ - 108MHZ, suitable for FM, RDS. CW, adjustable bandwidth range from 500HZ to 6000HZ according to different modulation modes, real-time reception signal quality measurement and automatic broadcast station search based on acquired data. For SSB, the minimum frequency adjustment step is 10HZ. Each amateur radio frequency band can be fine-tuned precisely with an accuracy of up to 1HZ using the BFO generator. Receive RDS information about site name, current program, station type and local time. Supports regional standards for RDS. New features in version 4.17: 1. The machine carries the latest firmware and supports subsequent upgrades. 2. Added personalized interface 3. Support LNA function (can be turned on or off on the screen, and there is an indicator light) 4. Support high-impedance HI-Z mode (can be switched on the screen, and there is an indicator light) 5. Support 50ohm mode (can be switched on the screen, and there is an indicator light) 6. Built-in band-pass filter circuit filtering, shielding cover to shield interference 7. Support CW decoding function 8. Equipped with a 3-inch external magnetic full-range stereo speaker, the sound quality is better and there is no broken sound. Use headphones to listen to stereo programs within the FM broadcast range. The headphone cable acts as an FM antenna. Automatic switching of antenna inputs. 9. Screen brightness can be adjusted or turned off completely to add more autonomy and reduce distractions. Product parameters: Shell material: aluminum alloy Built-in lithium battery 3.7V/3000mah Material: Aluminum alloy colour: Black Package Contents: 1 x Host 1 x Storage bag 1 x Wifi antenna 1 x Telescopic antenna 1 x 2-in-1 touch pen 1 x TYPE-C charging cable 1 x Machine foot pad