Features: 1,Equipped with a 2.4 inch color touch screen, it can let you read data more smoothly and provide you with a better user experience.2,Built-in -capacity lithium battery, no need to worry about sudden power failure affecting use.3,Support the TYPE-C interface upgrade program, 3.5mm stereo audio output, and 3.5mm audio fm antenna interface, with a maximum charging current of 1.5AFunction:1. Radio frequency spectrum scanning function2. Backlight brightness adjustment3. Backlight off4. Battery voltage display5. Battery percentage display6. High-precision rotary long-life encoder knob7. FM RDS information display8. Mobile APP network WIFI configuration9. With 2.4G external antenna interface, the signal is strong10. WIFI network time service display11. Time zone customization12. Support Russian firmware upgrade (Russian firmware needs to be purchased at a fee, please purchase the key authorization yourself)Frequency:FM: 64 functions 108MHz/RDS functionsLW:153khz 500khzMW:520khz 1710khzSW:1730khz 30000khzSSB:1730khz 30000khzAntenna interface: BNCProduct parameters:Built-in lithium battery 3.7V/2000maTYPE-C program upgrade and chargingShell size: 11.1 x 10.2 x 4.7cm, excluding protruding partMaterial: Aluminum alloycolour: BlackPackage Contents:1 x Host1 x wifi antenna1 x Rod antenna1 x Touch pen1 x TYPE-C charging data cable1 x Screen wiping cloth1 x Corner padOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.