Hands Free Design: Just hang the fan around your neck and enjoy the cool breeze (adjustable safety lanyard included). It will not swing back and forth, causing neck pain when walking. 3000mAh Rechargeable Battery: It can be charged by any 5V USB devices (e.g. power banks, computers, etc.) be powered and charged. Once the battery is fully charged, it can be used for 4-22 hours. 3 Adjustable Speeds: Low / Medium / High speed settings meet your different wind speed needs. The highest wind speed blows air at 5.9M/S 90-Degree Rotation: The necklace fan can be adjusted 90 degrees up or down according to your size or position. Compact and Portable: Just put it in a pocket and take it with you. Use it anytime, anywhere. An excellent choice for outdoor activities and travel Product Description Color Name:Pink,3000 Mah Perfect cooling for on the go Cool everywhere on hot summer days stay. Perfect for going to the amusement park, watching outdoor sports, outdoor concerts, walking around campus, meeting, traveling, hiking, backpacking, or having a picnic. Just hang around your neck to take with you Only 122 g, lighter than a phone. Wearing it will not cause neck pain. Specially designed for people who travel a lot. Stay calm when you hang it around your neck. Doesn't sway when you walk. Highlights - Hands-free cooling with vertical powerful airflow - Compact and portable - Lightweight design, including an adjustable safety lanyard - With a USB charging cable, the Fan can be powered and charged by any 5V USB devices (such as power banks, computers, etc.). - Battery life: 3-15 hours