AMNVOLT V3S Mini SI4732 DSP Radio Receiver with Hi-Z Headphone Amplifier Circuit FM AM SSB LSB USB Mode ESP32-S3 Pocket Radio

Note: 1. If the encoder is stuck after receiving the product, it may be due to the long transportation time, which has caused the lubricant to dry out. It is recommended to remove the cap and add lubricant before use.

2. Do not use incompatible firmware updates without authorization, otherwise the product may fail to update and become bricked.

Advantages of upgrade: 
1. The latest upgraded version in June 2025
2. Built-in HIZ circuit and headphone amplifier circuit (Delivery after the end of May only)
3. Use ABS injection molded shell, which will be more durable(previously 3D printed shell) (Due to version upgrades and batch issues, the black loop antenna version may be sent with a mix of the old and new versions. Please refer to the version received.)
4. Optimized circuit, no more extra power consumption after shutdown, no more battery drain issue. (Due to version upgrades and batch issues, the black loop antenna version may be sent with a mix of the old and new versions. Please refer to the version received.)

Features:
1. Adopt ESP32-S3 master control + SI4732 DSP chip, support full-band broadcast, LSB USB AM FM mode, support AGC/ATT function
2. Adopt 1.9-inch IPS high-definition color screen, support screen backlight brightness adjustment, support battery power display
3. Built-in 1W power cavity speaker, loud and pleasant sound quality
4. Support firmware upgrade
5. Convenient operation: All actions can be performed with a single press/rotation of the rotary encoder button
6. Built-in headphone amplifier circuit, the volume of listening with headphones is loud
7. Built-in Hi-Z circuit can improve weak signal resolution

Parameters:
- Brand: AMNVOLT
- Hardware version: V3S by AMNVOLT
- Main control: ESP-32-S3
- Working mode: FM/AM/LSB/USB (note, does not support aviation band)
- Receiving band: HF/SW/MW/VHF
- Frequency range: LW, MW, SW (150kHz - 30MHz), VHF (64-108Mhz)
- Screen: 1.9inch, 170*320 resolution
- Brightness: 32~255 levels, adjustable
- Charging interface: TYPE-C (cannot be charged with fast charging)
- Audio interface: 3.5mm three-stage stereo
- Antenna interface: SMA-KE (inner hole)
- Battery capacity: 800ma

Package includes:
1 x MINI SI4732 radio
1 x Antenna (telescopic antenna/ring rotating antenna optional)