This bladeless neck fan is crafted to liberate your hands, being lightweight and portable, enabling you to carry it wherever you go. Its unique silicone adjustable design offers a more comfortable wearing sensation and can be adjusted to fulfill different size requirements. It has an in-built 1200mAh rechargeable battery that can provide up to 5 hours of strong wind power. It offers 3 adjustable speeds, allowing you to adjust to the appropriate fan speed that meets your needs.8.85″ L x 5.51″ W x 2.67″ H