Designed for compact portability and high sensitivity, this receiver the performance of high-end radios on the market, covering medium wave, short wave, and FM broadcasts, and also supports shortwave single-sideband reception. The main control module uses the ESP32-S3-N16R8 WiFi + Bluetooth 5.0 wireless module, a dual-core IoT MCU module. The main chip uses the SI4732 chip, supporting AM/FM/SW/RDS reception. The display module uses a 1.9-inch color TFT display with a 170 x 320 dot matrix, providing clear and natural colors. A new receiver op-amp circuit significantly improves sensitivity. Basic Usage Instructions: 1. Push the side power switch upward to turn on the radio. 2. Short- and hold the encoder (300ms): Switches between search mode (magnifying glass in the upper left corner) and frequency mode (+- and - icons in the upper left corner). In SSB mode, this enables BFO adjustment. 3. Long the encoder (700ms): Adjusts the volume. 4. Single- the encoder: Switches to the band menu. 5. Double- the encoder: Sets the menu. 6. Triple- the encoder: Reads a stored station (auto-search is automatically turned off after reading a SSB station). 7. Quadruple-click the encoder: Calibrates the battery voltage. 8. and hold the encoder for more than 2 seconds: Soft-off/on. 9. and hold the encoder to power on: Clears all band settings and restores defaults. 10. and hold the encoder to adjust the volume. This function is easy to misuse and requires proficiency. Other issues: 1. Add aviation band (requires external down-conversion 100 inverter) 2. Add WIFI function (1) Select configuration in the WiFi in the settings, the screen prompts "Network configuration". Connect the mobile phone or computer to the WiFi "Network configuration WIFI". After the connection, configuration page automatically open. (2) Enter the account and password on the page and submit to successfully configure . (3) Fill in the call sign form with the call sign or custom information. If the radio name is matched by mistake, this information be displayed in the RDS position. (4) Fill in the information in the radio name form according to the format "99800=ZGZS,10010=JJSZ,5000=". After submission, it be displayed in the RDS position when the radio frequency is matched. (5) If RDS information is received, the RDS information be displayed normally. (6) The time display is automatically obtained after connecting to . If there is no network, the time from 8:00. 3. In SSB mode, a short on the encoder quickly opens the BFO setting. 4. Switching the band from SSB mode to shortwave automatically turns off SSB. Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Color: Random Color (random colors, don't accept the specified color) Material: PCB Package Contents: 1 * Motherboard Kit Only 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.