Effective 5 Piece Cooling structure: This wearable cooling device features a 5 piece design with 44mm diameter, creating consistent draft for quick temperature relief Extended Use Time: Utilizing energy management and an 8000mAh built in electricity source, this cooling unit operates up to 23 hours on gentle mode It accommodates replenishment (5V / 2A) through common charging connection and provides a USB port for accessory replenishment when required Multiple Application Methods: Engineered with both neck attachment and stable base, this adaptable cooling solution can be worn or positioned in various ways The integrated lighting proposals three practical picks including continuous, intermittent and alert modes, excellent for outside excursions such as camping or athletic pursuits Safe & Resilient Construction: Crafted from flyweight ABS and pliable silicone components (280g), this cooling appliance includes safeguards against over replenishment / depletion It ceases function when completely replenished or at minimal fee condition to preserve electricity source condition Space Saving & Practical: Sized merely 3.8x2.9x3.8 inches and weighing 10.76oz, this attachable cooling device is simple to transport in carriers or fasten to apparel