Specifications: With a base, this fan can be used as a phone holder. This cooling fan works with low noise, so you can use it the dormitory, classroom, library or office. The wind speed is adjustable, making you feel cool and comfortable in the hot summer. It has a large-capacity rechargeable battery for long-time use, and it can be easily connected to the USB interface for charging. Item Name: Mini USB Fan Material: ABS Wind Speed: 4 Gears (Adjustable) Battery Capacity: 1800mAh (Included) Voltage/Current: 5V/0.5A-1A (The mainboard is with protection circuit.) Motor: with Dual Capacitor, 4800rmp Noise: 30dB Features: Portable, Handheld, USB Rechargeable, Adjustable Speed Fan Size (with Base): 215.5mm x 107mm x 65mm/8.48" x 4.21" x 2.56" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: (Phone Not Included) 1 x Mini USB Fan 1 x Base 1 x Charging Cable 1 x Lanyard