Cooling Technology: Aerospace-Grade Cold Pump Cooling Cooling Response: Instant Icy Airflow in Approximately 1 Second Battery: 3000mAh Design: Mini and Portable Carrying Feature: Integrated Carabiner Clip Noise Reduction: Honeycomb-Patterned Acoustic Vent Design Bearings: Dual Ball Bearings Performance: Stable Airflow with Reduced Noise