Features Frequency Range: In the frequency range of 132KHZ‑30000KHZ, suitable for AM, SYNC, SSB, DIGI; In the range of 64MHZ‑108MHZ, suitable for FM, RDS. Bandwidth Range: Adjustable bandwidth range of 500HZ‑6000HZ, real time reception of signal quality measurement and automatic search based on acquired data. High Accuracy: For SSB, the minimum frequency adjustment step is 10Hz, and BFO generator is used to fine tune each amateur radio band, with 1HZ accuracy. Screen Operation: This receiver is easy to use, can adjust screen brightness or completely turn off the screen to increase more autonomy and reduce interference. 3000mAh Battery: This radio receiver has a built in polymer battery with a large capacity of 3000mAh, ensuring long term use, can be used anytime, anywhere. Specification: Item Type: Radio Receiver Material: Aluminum Alloy Battery: 1 x 3000mAh Polymer Battery (Built in Battery) Additional Features of Version 4.17: 1. The machine carries the latest genuine firmware, supports subsequent upgrades. 2. New personalized interface added. 3. Supports LNA function (can be operated on the screen to turn on or off, with indicator light). 4. Supports high impedance HI-Z mode (switch on the screen, with indicator light). 5. Supports 50ohm mode (switch on the screen, with indicator light). 6. Built in bandpass filtering circuit to filter interference. 7. Supports CW decoding function. 8. Adjust screen brightness or turn off the screen completely for more autonomy and reduced interference. Package List:1 x Receiver 1 x WiFi Antenna 1 x Telescopic Antenna 1 x Touch Pen 1 x Corner Cushion 1 x USB Cable Package List 1 x Receiver 1 x WiFi Antenna 1 x Telescopic Antenna 1 x Touch Pen 1 x Corner Cushion 1 x USB Cable