Adjustable Angle 3 Adjustable Speeds to meet your individual needs Built-in rechargeable 2200mAh lithium battery 2-4 hours working time depends on different modes Hands-Free Design This upgraded necklace fan is designed to be worn around the neck so your hands can be free. Its a perfect idea for outdoor events, such as watching football and baseball, camping, climbing, fishing, jogging, etc. You can hang the fan around your neck and take it everywhere ensuring you will not feel tired or uncomfortable. High-performance turbine motor, quieter, stronger wind and longer endurance. All holes are evenly ventilated so that wearing face coverings such as a mask will not be stuffy. The adjustable part of the neck is made of high-quality materials, which are convenient to fold, durable and comfortable to wear. Breathable and non-slip, giving you a perfect user experience. 12-ounce weight, adjustable angle design, no feeling of pressing the neck and suitable for different sizes of neck circumference. 3 Adjustable Speeds- This wearable cooler fan is available with low, medium and high-speed settings to meet your individual needs. 2 4 hours run time, depending on different modes. Leaper USB Neck Mini Portable Sport Fan in Black