{"product_id":"lenovo-ice-cooling-portable-neck-handheld-fan-199-speed-4000mah","title":"Lenovo 199-Speed Ice-Cooling Portable Neck \u0026 Handheld Fan 4000mAh","description":"\n\u003ch2\u003eLenovo Ice-Cooling Handheld \u0026amp; Neck Fan – 199 Speeds, 4000mAh Battery\u003c\/h2\u003e\n\u003cp\u003eStay cool wherever you go with the Lenovo JF137 — a next-generation portable fan that combines semiconductor ice-ceramic cooling technology with a powerful 12,000 RPM turbo motor. With 199 precision speed levels, a foldable design, and a built-in neck strap, this fan effortlessly switches between handheld, desktop, and hands-free neck-worn modes. Perfect for outdoor adventures, commutes, workouts, and everyday use. Made in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e199 Adjustable Wind Speeds:\u003c\/strong\u003e Fine-tune airflow to your exact comfort level with ultra-precise speed control shown on a crisp LED digital display.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSemiconductor Ice-Ceramic Cooling:\u003c\/strong\u003e Advanced rapid-cooling technology drops the airflow temperature by up to 15°C in just 1 second for instant refreshing coolness.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGerman Turbo Fan Technology:\u003c\/strong\u003e The 12,000 RPM high-power motor delivers 96% more airflow force, 78% less noise, and 80% better battery efficiency compared to standard fans.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4000mAh High-Capacity Battery:\u003c\/strong\u003e Long-lasting USB rechargeable battery (Type-C) keeps you going all day — rated for 8+ hours of continuous use depending on speed setting.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e90° Foldable 3-in-1 Design:\u003c\/strong\u003e Use it as a handheld fan, fold it flat to use as a desktop fan, or fold the head down and slip the strap around your neck for hands-free comfort.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-in Hang Strap Slot:\u003c\/strong\u003e Integrated side strap slot makes it easy to carry or wear around your neck — no accessories needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple Wind Modes:\u003c\/strong\u003e Choose from Natural Wind, Sleep Wind, or Prevailing Wind to match your environment and preference.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE, RoHS \u0026amp; UL Certified:\u003c\/strong\u003e Meets international safety and compliance standards for peace of mind.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eJF137\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eABS + Aluminum Alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e254g\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4000mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10W\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharging Port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eType-C USB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFan Speed Levels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e199\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMotor Speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12,000 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8+ hours\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWind Modes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNatural Wind, Sleep Wind, Prevailing Wind\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable Colors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWhite, Pink, Gray, Purple\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE, RoHS, UL\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eButton Controls\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRight Button – Short Press:\u003c\/strong\u003e Turn ON\/OFF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRight Button – Long Press:\u003c\/strong\u003e Increase speed level\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLeft Button – Short Press:\u003c\/strong\u003e Activate ice-cooling mode\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLeft Button – Long Press:\u003c\/strong\u003e Decrease speed level\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cp\u003eLooking for more smart home and personal comfort accessories? Check out our \u003ca href=\"\/products\/3-mode-dimmable-led-night-light-wall-socket-remote-control\"\u003e3-Mode Dimmable LED Night Light Wall Socket with Remote\u003c\/a\u003e for hands-free ambient lighting. For kitchen organization, explore our \u003ca href=\"\/products\/3d-printed-pla-fridge-bottle-can-holder-anti-roll-organizer\"\u003e3D Printed PLA Fridge Bottle \u0026amp; Can Holder – Anti-Roll Organizer\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/medlineplus.gov\/benefitsofexercise.html\" target=\"_blank\" rel=\"noopener\"\u003eMedlinePlus on the benefits of exercise\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: How long does the Lenovo JF137 portable fan battery last on a single charge?\u003c\/h4\u003e\n\u003cp\u003eA: The 4000mAh rechargeable battery is rated for 8+ hours of use depending on the speed level selected. At lower speeds it can last even longer, making it ideal for all-day outdoor use. It charges quickly via the included Type-C USB port.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can the Lenovo ice-cooling handheld fan be used as a neck fan?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The 90° foldable design allows it to transform between handheld, desktop, and neck-worn modes. Simply fold the fan head down and use the built-in side strap slot to wear it around your neck for hands-free cooling on the go.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What makes the semiconductor ice-ceramic cooling technology different from a regular fan?\u003c\/h4\u003e\n\u003cp\u003eA: Unlike standard fans that simply circulate ambient air, the semiconductor ice-ceramic cooling module actively lowers the temperature of the airflow by up to 15°C in just 1 second, delivering noticeably cooler air — similar to the sensation of a gentle breeze on a cool day.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What colors is the Lenovo JF137 fan available in?\u003c\/h4\u003e\n\u003cp\u003eA: The fan is available in four stylish colors: White, Pink, Gray, and Purple, so you can choose the one that best suits your personal style.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How long does the Lenovo JF137 portable fan battery last on a single charge?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The 4000mAh rechargeable battery is rated for 8+ hours of use depending on the speed level selected. At lower speeds it can last even longer, making it ideal for all-day outdoor use. It charges quickly via the included Type-C USB port.\"}}, {\"@type\": \"Question\", \"name\": \"Can the Lenovo ice-cooling handheld fan be used as a neck fan?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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