Safety & 78 Air Outlets: An innovative neck fan that can send out the wind without obstructing your hands by simply placing it on your neck. Designed without wings, it can be used safely by children and the elderly. When using the fan, you don't have to worry about your hair getting caught on the fan blades. With 78 air outlets around the neck, it can be used on the whole face, which produces enough air to keep you cool. It is also ideal as a companion for working in hot weather. Hands-free and fashionable design: the hands-free fan was designed like a helmet to free your hands anywhere; the trendy style makes you look so cool and you can take it anywhere in hot weather. 4-16 hours running time and 3 speeds: 4000mAh large capacity batteries provide 4-16 hours of operation (depending on the different speeds). Set the appropriate fan speed by pressing the power button repeatedly. Quiet and comfortable design: The portable fan motor has been modified so that noises of at least 25dB can be generated during the race. Just hear your own breath. Made of eco-friendly ABS and silicone. Makes hands-free neckband softer, more durable and quieter. Compact design: Personal neck fans weigh approximately 258g and are ultra-lightweight, putting less strain on the neck.