[Up to 20 Hours Runtime] Each JIJ rechargeable hand warmer is equipped with a 4000mAh battery (total 8000mAh for 2 units), delivering 8.5–20 hours of continuous warmth you can...
[Instant 2s Heating] Built with an AI temperature control chip, JIJ electric hand warmers deliver steady, precise heat in just 2 seconds—no more sudden hot or cold swings like...
[LED & Digital Display] Unlike ordinary portable hand warmers, this upgraded version features a digital screen plus LED indicators. Check both temperature and remaining battery...
[2-in-1 Magnetic Design] Use two heated hand warmers separately, one for each hand, or snap them together magnetically for a 360° surround heating experience. This versatile...
[Smart Dual Charging & Safe Design] The set comes with a USB cable featuring dual Type-C connectors, allowing both units to charge simultaneously. Each reusable hand warmer is...

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