{"product_id":"amnvolt-v4-full-band-dsp-pocket-radio-si4732-lsb-usb-am-fm-sw","title":"AMNVOLT V4 Si4732 Full-Band DSP Pocket Radio LSB USB AM FM SW","description":"\n\u003ch2\u003eAMNVOLT V4 ATS MINI Full-Band DSP Pocket Radio — Hear More, Go Further\u003c\/h2\u003e\n\u003cp\u003eWhether you're hiking through the backcountry, camping under the stars, or simply enjoying a walk around the neighborhood, the \u003cstrong\u003eAMNVOLT V4 ATS MINI\u003c\/strong\u003e is your ultimate compact listening companion. Powered by the industry-respected \u003cstrong\u003eSi4732 DSP chip\u003c\/strong\u003e and an \u003cstrong\u003eESP-32-S3 main controller\u003c\/strong\u003e, 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.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAll-Band Coverage:\u003c\/strong\u003e 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.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVivid 1.9-Inch IPS Color Display:\u003c\/strong\u003e 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.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-In 1W Cavity Speaker:\u003c\/strong\u003e 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).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnhanced Weak-Signal Reception (Hi-Z Circuit):\u003c\/strong\u003e A front-end Hi-Z circuit dramatically improves sensitivity to faint signals, so you stay connected even in remote or challenging environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFirmware Upgradable:\u003c\/strong\u003e Keep your radio current with the latest features and performance improvements via hassle-free firmware updates.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eV4 Upgrade Highlights:\u003c\/strong\u003e\n    \u003cul\u003e\n      \u003cli\u003eShielding cover on the Si4732 receiver section to suppress electromagnetic interference (EMI).\u003c\/li\u003e\n      \u003cli\u003eESD protection chips at the antenna input for added durability.\u003c\/li\u003e\n      \u003cli\u003eRelocated Hi-Z circuit for improved signal resonance and reduced noise floor.\u003c\/li\u003e\n      \u003cli\u003eWired headphones can double as an FM antenna (best in strong-signal environments with longer cables).\u003c\/li\u003e\n      \u003cli\u003eRecalibrated amplifier and speaker parameters for superior audio quality.\u003c\/li\u003e\n      \u003cli\u003eSturdier telescopic antenna and a premium non-slip knob cap.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Housing Options:\u003c\/strong\u003e Choose between a sleek CNC-machined aluminum alloy body or a lightweight ABS plastic shell. \u003cem\u003eNote: The CNC metal version provides enhanced interference resistance but may modestly reduce Wi-Fi signal strength due to the aluminum's natural shielding properties.\u003c\/em\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUSB-C Charging:\u003c\/strong\u003e Convenient modern charging via TYPE-C port (standard chargers only — fast chargers not supported). 800 mAh internal battery included.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSMA-KE Antenna Connector:\u003c\/strong\u003e Compatible with a wide range of aftermarket antennas for expanded coverage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eBrand \/ Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAMNVOLT V4\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMain Controller\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eESP-32-S3\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eDSP Chip\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eSi4732\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOperating Modes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eFM \/ AM \/ LSB \/ USB (aeronautical bands not supported)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eReceiving Bands\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eHF \/ SW \/ MW \/ VHF\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eFrequency Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eLW, MW, SW: 150 kHz – 30 MHz  |  VHF: 64–108 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eDisplay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1.9-inch IPS, 170×320 resolution, adjustable brightness (32–255 levels)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eSpeaker Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1W built-in cavity speaker\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eAudio Jack\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e3.5mm 3-pin stereo\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCharging Port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eTYPE-C (standard charging only)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eAntenna Connector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eSMA-KE (female)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e800 mAh (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eHousing Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eCNC-machined aluminum alloy or ABS injection-molded plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eApprox. 80 × 35 × 20 mm (3.15 × 1.38 × 0.79 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × AMNVOLT V4 ATS MINI Radio\u003c\/li\u003e\n  \u003cli\u003e1 × Circle (Loop) Antenna\u003c\/li\u003e\n  \u003cli\u003e1 × Telescopic Antenna\u003c\/li\u003e\n  \u003cli\u003e1 × Instruction Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eImportant Notes:\u003c\/strong\u003e 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.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eFor 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).\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Does the AMNVOLT V4 Si4732 DSP radio support shortwave (SW) listening?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use my wired headphones as an FM antenna with this pocket radio?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the difference between the CNC metal and ABS plastic housing versions?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does this DSP radio support fast charging via the USB-C port?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this pocket radio suitable for outdoor activities like hiking and camping?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Does the AMNVOLT V4 Si4732 DSP radio support shortwave (SW) listening?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"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.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use my wired headphones as an FM antenna with this pocket radio?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — one of the V4 upgrade features allows compatible wired headphones to function as an FM antenna. 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