1The waist clip is designed for outdoor high temperature work, fitness, travel and so on. 2Small size, light weight inside, easy to carry, can be held by hand, waist hanging, neck hanging. 3One machine and multipurpose, the fan can blow, illuminate, and charge with builtin power bank. 4Strong and cooling wind, longlasting electricity, meeting the need for a of cooling. 5Threelevel optional, easy to operate, convenient to worktravel and do sports. Item Type: Portable Small Fan Material: ABS Function: Occupies a Small Area, Enjoy the Natural Coolness from Morning to Night in Outdoor Work, Fitness, Crazy Street, etc. Size: Approx. 8.5 x 8.5 x 7cm/3.3 x 3.3 x 2.8in Battery Type: Lithium Battery ( with Built-in Battery) Battery Model: 18650 Battery Capacity: 9600mah Application: Hung on the Waist or Neck Wind Speed: 1 LevelWind Speed: 4.5m Per Second 2 Level Speed: 5.5m Per Second 3 Level Wind Speed: 6.5m Per Second Charging Time: 4 Hours to Charge to 90% of the Battery Capacity, 5 Hours to Fully Charge Endurance: 1 LevelBattery Life: 7 Hours Soft Wind Mode 2Level Battery Life: 6 Hours Comfort Mode 3Level Battery Life: 4 Hours of Strong Mode Multiple Charging Methods with USB Interface: Type-c, Micro USB Charging Interface, Which Can Be Connected to Desktop Computers, Notebooks, Power Banks, Charging Heads and Other Devices to Charge at Any Time 1 xPortable Small Fan 1 x USB Cable 1 x User Manual 1 x Hanging Rope 1. Please allow 02 cm error due to manual measurement. Thanks for your understanding.2. with builtin battery.