Experience the ultimate in portable warmth with our 10,000 mAh high-capacity rechargeable hand warmers, designed to deliver up to 12 hours of continuous heat during the chilly winter months. These are your go-to heat banks, offering dual-sided warmth that quickly reaches your desired temperature for extended periods. Whether you have large or small hands, our hand warmers are perfectly tailored to fit comfortably in your palms, providing you with the ideal blend of warmth and convenience. Stay cozy and powered up all winter long with our reliable and efficient hand warmers. Made from abs+aluminum alloy material, measuring 4.33*2.48*1.3inches, this custom temperature display hand warmer power bank 10000 mah. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Tailored branding: Supports logo imprint and design personalization. Product Highlights: Compact size, lightweight, easy to carry.