fosa Portable SI4732 Mini Radio, DSP Radio Adapter, SI4732 DSP Chip, 1.9 Inch IPS Color Screen, 1W Cavity Speaker, for FM AM LSB USB Bands Reception

Item Type: Mini Radio Adapter​ Housing Material: CNC Aluminum Alloy Main Control: Fit for ESP-32-S3 Working Mode: FM, AM, LSB, USB (Note: Not support aviation band) Receiving Frequency Range: HF, SW, MW, VHF Frequency Range: LW, MW, SW (150kHz-30MHz), VHF (64-108Mhz) Screen: 1.9 inch, 170x320 resolution Screen Brightness: 32-255 levels, adjustable Charging Interface: TYPE C (Cannot be charged with fast chargers) Audible Interface: 3.5mm 3 segment stereo Interface: SMA-KE (inner hole) Battery: 1 x 800mah Rechargeable Li Battery (built in) Circular Specification: 10KHz-180MHz Radio Size: Approx. 8 x 3.5 x 1.8cm / 3.1 x 1.4 x 0.7in How to Use: 1. The receiving part adds shielding cover to suppress electromagnetic interference; ESD device protection chip is added to the input end for safety. 2. Hi-Z circuit is changed to the front end, use more stable VCC_RADIO power supply to retain signal resonance and reduce noise. 3. Added function to use wired headphone as FM (headphone is not included, please prepare them yourself; it is recommended to use in environments with strong FM signals, and a longer headphone cable can achieve better results). 4. Left and right channels are reversed; the amplifier and speaker parameters are readjusted to improve sound quality. 5. Using more robust telescopic , and knob cap with better tactile feel and non slip design. Package List: 1 x Adapter​ 1 x Circular 1 x Telescopic 1 x User Manual 1 x USB Cable

• Product Features: Fit for ESP32 S3 main control and fit for SI4732 DSP chip, this portable radio supports all band reception including FM, AM, LSB, and USB modes, supporting AGC ATT functions
• Color Display: The DSP radio Adapter is equipped with a 1.9 inch IPS color screen offering 170x320 resolution, adjustable backlight brightness, and real time battery level display for user convenience
• Powerful Speaker and Amplifier: Built in 1W cavity speaker, this radio delivers clear and robust sound quality, while the headphone amplifier ensures loud and crisp sound through headphone
• Upgradable Firmware: Support for upgrading to the latest firmware, the factory preset firmware version should be at least VER.2.3.1 (As firmware updates are frequent, please update to the latest firmware after receiving it to maintain the latest usage experience
• Precise Signal Handling: Featuring Hi Z circuit and original module, this portable radio Adapter enhances weak signal resolution and ensures reliability across LW, MW, SW, and VHF bands