Stay cool on the go with NNEOBA's Smart Portable Ice Belt Fan. Perfect for outdoor sports and hot summer days. Specifications: Cooling System: True 5-Core TechnologyBattery Capacity: 10,000mAh (Up to 1 week use)Airflow: 28 Air DuctsNoise Reduction: Dual Active Noise ReductionUSB PoweredDimensions: 19 x 14 x 7 cm Benefits: Long-lasting 10,000mAh battery for extended useFive-core cooling system for quick, powerful coolingQuiet operation with advanced noise reductionPortable and lightweight design for easy carryIdeal for outdoor sports and hot summer weather Description:The NNEOBA Smart Portable Ice Belt Fan provides rapid cooling with its true five-core system, lowering your body temperature by up to 35°C in seconds. Equipped with a large 10,000mAh battery, it offers up to a week of use without needing a recharge. Its dual active noise reduction ensures a quiet, soft breeze, making it perfect for outdoor activities and sports on hot summer days. This fan is compact, lightweight, and designed to keep you cool wherever you go.