AMNVOLT V4 Si4732 Full-Band DSP Pocket Radio LSB USB AM FM SW
AMNVOLT V4 Si4732 Full-Band DSP Pocket Radio LSB USB AM FM SW
AMNVOLT V4 ATS MINI Full-Band DSP Pocket Radio — Hear More, Go Further
Whether you're hiking through the backcountry, camping under the stars, or simply enjoying a walk around the neighborhood, the AMNVOLT V4 ATS MINI is your ultimate compact listening companion. Powered by the industry-respected Si4732 DSP chip and an ESP-32-S3 main controller, this pocket-sized powerhouse delivers crystal-clear audio across virtually every broadcast band — FM, AM, SW, MW, LW, LSB, and USB — in a device small enough to fit in your palm.
Key Features
- All-Band Coverage: Receives LW, MW, SW (150 kHz – 30 MHz), and VHF (64–108 MHz). Supports FM, AM, LSB, and USB operating modes for versatile listening wherever you are.
- Vivid 1.9-Inch IPS Color Display: A 170×320 resolution screen with 32–255 adjustable brightness levels ensures easy readability in any lighting condition, from bright sunlight to a dimly lit tent.
- Built-In 1W Cavity Speaker: Rich, room-filling audio from a surprisingly small frame. The upgraded earphone amplifier circuit also drives headphones at high volume with exceptional clarity (3.5mm 3-pin stereo jack).
- Enhanced Weak-Signal Reception (Hi-Z Circuit): A front-end Hi-Z circuit dramatically improves sensitivity to faint signals, so you stay connected even in remote or challenging environments.
- Firmware Upgradable: Keep your radio current with the latest features and performance improvements via hassle-free firmware updates.
-
V4 Upgrade Highlights:
- Shielding cover on the Si4732 receiver section to suppress electromagnetic interference (EMI).
- ESD protection chips at the antenna input for added durability.
- Relocated Hi-Z circuit for improved signal resonance and reduced noise floor.
- Wired headphones can double as an FM antenna (best in strong-signal environments with longer cables).
- Recalibrated amplifier and speaker parameters for superior audio quality.
- Sturdier telescopic antenna and a premium non-slip knob cap.
- Dual Housing Options: Choose between a sleek CNC-machined aluminum alloy body or a lightweight ABS plastic shell. Note: The CNC metal version provides enhanced interference resistance but may modestly reduce Wi-Fi signal strength due to the aluminum's natural shielding properties.
- USB-C Charging: Convenient modern charging via TYPE-C port (standard chargers only — fast chargers not supported). 800 mAh internal battery included.
- SMA-KE Antenna Connector: Compatible with a wide range of aftermarket antennas for expanded coverage.
Specifications
| Brand / Model | AMNVOLT V4 |
| Main Controller | ESP-32-S3 |
| DSP Chip | Si4732 |
| Operating Modes | FM / AM / LSB / USB (aeronautical bands not supported) |
| Receiving Bands | HF / SW / MW / VHF |
| Frequency Range | LW, MW, SW: 150 kHz – 30 MHz | VHF: 64–108 MHz |
| Display | 1.9-inch IPS, 170×320 resolution, adjustable brightness (32–255 levels) |
| Speaker Output | 1W built-in cavity speaker |
| Audio Jack | 3.5mm 3-pin stereo |
| Charging Port | TYPE-C (standard charging only) |
| Antenna Connector | SMA-KE (female) |
| Battery Capacity | 800 mAh (included) |
| Housing Options | CNC-machined aluminum alloy or ABS injection-molded plastic |
| Dimensions | Approx. 80 × 35 × 20 mm (3.15 × 1.38 × 0.79 in) |
| Country of Origin | Made in China |
What's in the Box
- 1 × AMNVOLT V4 ATS MINI Radio
- 1 × Circle (Loop) Antenna
- 1 × Telescopic Antenna
- 1 × Instruction Manual
Important Notes: Headphones are NOT included — the headphone images shown are for FM antenna demonstration purposes only. Please provide your own headphones. Color may vary slightly due to monitor settings and lighting. Allow ±1–2 cm measurement tolerance due to manual measurement.
For more on radio frequency bands and reception standards, visit the Federal Communications Commission (FCC) and for consumer electronics safety guidance refer to the U.S. Consumer Product Safety Commission (CPSC).
Frequently Asked Questions
Q: Does the AMNVOLT V4 Si4732 DSP radio support shortwave (SW) listening?
A: Yes! The AMNVOLT V4 covers a broad frequency range including shortwave (SW) from 150 kHz to 30 MHz, along with LW, MW, and VHF bands. It also supports LSB and USB sideband modes, making it an excellent choice for shortwave enthusiasts and hobbyists.
Q: Can I use my wired headphones as an FM antenna with this pocket radio?
A: Yes — one of the V4 upgrade features allows compatible wired headphones to function as an FM antenna. For best results, use this feature in areas with strong FM signal coverage and ensure your headphone cable is sufficiently long.
Q: What is the difference between the CNC metal and ABS plastic housing versions?
A: The CNC-machined aluminum alloy version offers a premium feel and enhanced resistance to electromagnetic interference, but the metal body can modestly attenuate nearby Wi-Fi signals. The ABS plastic version is lighter and does not affect Wi-Fi reception. Both versions share identical radio performance specifications.
Q: Does this DSP radio support fast charging via the USB-C port?
A: No — while the AMNVOLT V4 uses a modern USB-C charging port for convenience, it does not support fast chargers. Please use a standard 5V charger to avoid potential damage to the device.
Q: Is this pocket radio suitable for outdoor activities like hiking and camping?
A: Absolutely. The AMNVOLT V4 is compact (approx. 80 × 35 × 20 mm) and lightweight, making it ideal for walking, hiking, camping, and travel. Its built-in 800 mAh battery, all-band reception, and rugged design make it a dependable outdoor companion.