Powered Hand Fans Product Feature 1One Touch Control You can turn off the fan quickly.Allows you to save time and effort! 2Adjustable 4 Speeds Quiet With powerful rechargeable 1800mAh battery, it can work about 100~500 mins according to the speed to meet all your needs Even in high speed the noise is less than 40db. it is a quiet and good friend when working and sleeping. Ideal for your desk, office,bedroom use. 3 90 Adjustable Angle With its adjustable head that allows you to aim the cool air in any direction. 4Safe Durable Built-in optimized intelligent chip, can provide charge and discharge protection, over temperature protection, etc., to ensure the battery life, but also to prevent short circuit and other security issue. 5Quality Warranty The fan is made from high-quality material to make it long-lasting and provide a quiet, hassle-free use