This upgraded wearable neck fan is equipped with a high-performance 3800RPM motor, delivering steady powerful airflow and stable long-hour operation to keep you cool all the time. Built-in 4000mAh large capacity rechargeable battery supports 5 to 17 hours of continuous use at different wind speeds, meeting your all-day cooling needs. It offers 3 adjustable wind speeds to match various environments and personal preferences, running quietly below 30dB for a cozy experience. Featured with 64 auto-changing colorful lights activated by long pressing for 3 seconds, it adds trendy charm and fun, perfectly matching different outfits. Adopting soft, breathable material and ergonomic curved structure, this lightweight fan fits the neck closely without friction or burden even after long-time wearing. Hands-free and portable, it works well for daily commuting, outdoor activities, office work and more. Available in multiple stylish colors, it is a thoughtful and practical holiday gift for your families, lovers and friends to beat the summer heat.