3 Adjustable Speeds & LED Display: this portable necklace USB Fan is available with low/medium/high speed levels to meet your individual needs. In addition, this cooling fan with LED Display display, it is very clear to observe the current status of battery level and wind gears, which two automatically switches on the screen every five seconds. Free Your Hands & Fashion Design: Hand free innovative fashion neck fan with skin-friendly silicone will definitely be the best choice in the summer season. As a headset design but serves as a new neck fan, can be turned to any shape for your like, offering you a cool summer experience. USB Rechargeable and High Capacity Battery: 2*2000mAh Built-in battery, easily rechargeable via USB charger. 3 gear wind speed with one button offers you sleeping wind, natural wind and strong wind for your need. 3 hours fully charged for 1.5-7.5 hours of work time at different speed to meet your daily requirements. Portable and Low Noise: This small neck fan is quite portable and flexible than most neck fans, which only weigh 10oz (288g) and can be 360 free adjusted, you can catch and Take it in your bag anytime and anywhere. With 20-40dB low operating noise, it's absolutely a worry-free question to enjoy an ultra-quiet sleeping environment. THREE USES FOR ONE THING: An innovative new hanging neck fan, flexible changing of various modes of use, it can be hung on the neck, can be held hand and can be placed on the desk to meet different user experiences.