Dual-Sided Portable Hand Warmer with Built-In Power Bank This portable hand warmer is engineered to provide fast, double-sided heating, making it ideal for cold weather, outdoor activities, camping, and travel. Its compact, lightweight design fits comfortably in the hand or pocket, with a smooth metallic finish that delivers a warm and comfortable touch. The device heats up within seconds after activation and offers three adjustable temperature levels to match different environments. It is equipped with an intelligent safety system that automatically powers off after a set heating period to prevent overheating and ensure safe use. Powered by a built-in 5000mAh lithium battery (2 x 2500mAh), it can be recharged via USB and also functions as a power bank for emergency charging of mobile devices. Key Features Fast double-sided heating for efficient warmth Three adjustable heat settings ranging approximately from 45°C to 55°C One-touch operation with temperature and battery level indicators Intelligent automatic shut-off to prevent excess heat or prolonged operation Built-in rechargeable lithium battery Lightweight, ergonomic and travel-friendly designMaterials & Specifications Materials: Metal shell + durable ABS Battery Capacity: 5000mAh (2 x 2500mAh) Weight: Approx. 171g per unit Size: Approx. 9 x 5 x 2cm Input: 5V / 2A Package Includes 2 × Portable Hand Warmers 1 x Charging Cable 1 x Hanging Strap 1 x Storage Bag 1 x User Manual