AMNVOLT V4 ATS MINI DSP Radio, Si4732 ESP32-S3 Full-Band Radio with Headphone Amplifier, 1.9" IPS Screen AM/FM/LSB/USB Receiver for Outdoor Adventures, Travel, and Daily Use

V4 Upgraded Full-Band High Performance : Equipped with ESP32-S3 main controller & Si4732 DSP chip, supports AM/FM/LSB/USB modes, covers HF/SW/MW/VHF (150kHz-30MHz/64-108MHz) — no aeronautical bands, ideal for diverse listening needs. 1.9" IPS HD Screen & Adjustable Brightness : 170*320 resolution IPS color display with 32~255 adjustable brightness levels and real-time battery status display, clear visibility in all lighting for indoor/outdoor use. Enhanced Audio & Headphone Amplifier : Built-in 1W cavity speaker with recalibrated parameters for rich loud sound; upgraded headphone amplifier circuit delivers crisp high-volume stereo audio via 3.5mm jack (headphones not included). Superior Signal Reception & Anti-Interference : V4 upgrade adds Si4732 shielding cover & ESD antenna protection; Hi-Z front-end circuit boosts weak signal resolution, telescopic antenna and SMA-KE female connector for stable reception. Firmware Upgradable & V4 Exclusive Upgrades : Genuine ESP32-S3-WR OOM-1-N16R8 module with hassle-free firmware updates; V4 adds headphone-as-FM-antenna function, electromagnetic interference suppression and optimized power supply.