Features: SAFETY 78 AIR OUTLETS A novel neck fan that can send the wind without clogging 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 dont have to worry about your hair getting caught on the fan blades. With 78 air outlets around the neck, it can be used for the entire face around, which products enough air to keep you cool always. It is also ideal as a companion for working in hot weather. HANDS-FREE DESIGN FASHIONHand free fan was designed as a headphone to free your hands anywhere;Fashion style makes you look so cool and you can take it anywhere in hot weather. 4-16 RUNNING HRS 3 SPEEDS4000mAh large capacity batteries provide 4-16 working hours duration (depending on different speeds). Adjust appropriate fan speed by pressing the power button repeatedly. LOW NOISE DESIGN COMFORTABLEThe wearable neckband fans motor has been modified so that noises of at least 25 dB can be generated while running. It is quite enough to hear your own breath. Made of Eco-friendly ABS and silicone. Makes the hands free neckband fan softer and more durable and quieter. COMPACT DESIGN Personal neck fans weigh about 9.1OZ and are ultra-light, putting less strain on the neck.