This rechargeable hand warmer provides fast, reliable warmth with dual-sided heating that activates in just three seconds. It features two adjustable temperature settings, reaching up to 131 degrees Fahrenheit, and includes a digital display for precise temperature control. The compact pebble-shaped design fits comfortably in your pocket or gloves, making it ideal for outdoor activities, commuting, or everyday use during cold weather. The device includes a massage mode to help soothe muscle tension and stiffness. Equipped with a 5000mAh lithium polymer battery, this hand warmer doubles as a portable power bank to charge your electronic devices on the go. Depending on your selected heat setting, the battery provides between five and twelve hours of continuous warmth. The advanced intelligent protection system ensures safe operation by preventing overheating and short-circuiting. Constructed from durable ABS material, this hand warmer is built to last through many winters. This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm under Proposition 65. The package includes the hand warmer unit and a charging cable. Charging time is approximately 2.5 hours, and the unit measures 4.6 by 2.7 by 0.63 inches with a weight of 0.33 pounds.