Experience precise cooling control with the 100-speed infinite adjustment feature. From a gentle breeze to a powerful gust, tailor the airflow to your exact preference Stay informed about the fan's settings with the clear digital display screen. Easily monitor the current speed level and make adjustments as needed Experience powerful airflow with the handheld fan's turbo boost technology Utilize the latest in energy-efficient technology with the low-energy polyenergy chip. Enjoy up to four times the battery life compared to inferior fans on the market It can not only be used as a simple fan, but also can activate the cooling function to cool the hot skin Specifications: Product model: M57 Input: 5V-1A Product weight: 225g Battery capacity: 3600mAh Package included: 1 x Fan 1 x Charging Cable 1 x English User Manual Other items not include