Ultra-Long Battery Life: The Momcozy portable stroller fan is equipped with a 8000mAh large-capacity battery, which can be used continuously for 12-27 hours depending on the wind speed, and a 1M USB charging cable is provided, which can be conveniently charged anytime and anywhere without distance restrictions. It can be charged via a computer, mobile power bank, car charger, etc. (To ensure the safe operation of the device, please use the original data cable and use a charging device with a standard voltage below 5V) 360°Rotate & 4 Speeds: Momcozy Baby stroller fan's head can adjust vertically and horizontally in any direction, to provide cool airflow from every direction, keeping your little one comfortable on hot days.; it comes with 3 speeds for different purposes, The fourth level is natural wind, which is more comfortable for babies. New Upgrade & Baby-Friendly: Smaller fan gap size