Advantages:

 

1. The latest upgraded version as of June 2025.

 

2. Built-in HIZ circuit and headphone amplifier circuit.

 

3. Constructed with an ABS injection-molded shell for enhanced durability (previous versions used 3D-printed shells).

 

4. Optimized circuitry eliminates excessive power drain after shutdown—no more battery drain issue.

 

5. While some counterfeit factories use inferior, fake ESP32 modules that do not support ongoing firmware updates, we use the genuine ESP32-S3-WROOM-1, ensuring compatibility with all future firmware updates designed specifically for our hardware.

 

Features:

 

1. Equipped with ESP32-S3 main control + SI4732 DSP chip, supporting full-band radio reception (LSB, USB, AM, FM modes) and AGC/ATT functions.

 

2. Features a 1.9-inch IPS high-definition color screen with adjustable backlight brightness and battery level display.

 

3. Built-in 1W power cavity speaker for clear and loud audio output.

 

4. Supports firmware upgrades.

 

5. User-friendly operation: all actions can be performed via a single press or rotation of the rotary encoder button.

 

6. Built-in headphone amplifier circuit ensures loud and clear audio when using headphones.

 

7. Built-in Hi-Z circuit enhances weak signal resolution.

 

Specifications:

 

-Brand: AMNVOLT

 

-Hardware Version: V3S by AMNVOLT

 

-Main Control: ESP32-S3

 

-Operating Modes: FM/AM/LSB/USB (Note: Does not support aviation band)

 

-Receiving Bands: HF/SW/MW/VHF

 

-Frequency Range: LW, MW, SW (150kHz–30MHz), VHF (64–108MHz)

 

-Screen: 1.9 inches, 170×320 resolution

 

-Brightness: Adjustable across 32–255 levels

 

-Charging Port: Type-C (not compatible with fast charging)

 

-Audio Port: 3.5mm three-segment stereo

 

-Antenna Port: SMA-KE (female inner hole)

 

-Battery Capacity: 800mAh

 

Package List:

 

1 × V3S MINI SI4732 Radio

1 × Retractable Telescopic Antenna