QUIETECH Handheld 5000mAh Quiet Portable Fan

[Long Working Time & Ultra-Quiet: Handheld fan with built-in 5000 mAh large-capacity battery can work continuously for 5-20 hours (depending on the gear). It only takes 2.5 hours to fully charge. Noise level is <15dB ultra-quiet LED Display & 6 Speeds: LED display for real-time gear and remaining power display. Hand-held mini fan with 6 adjustable gears wind speed is gradually increased from 1 to 6 to meet various usage scenarios stay cool anywhere Portable & Foldable: This portable fan measures 8.5 x 3.9 x 1.2 inches and weighs 6 ounces. It can be held in hand placed on a table or hung around the neck with the provided string for convenient travel One-Button & Backup Power: Foldable hand held fan with one-touch air volume adjustment doubles as a mobile power source for emergency charging of phones laptops and other devices Easy to Clean: Detachable front cover for easy blade cleaning. Hand-held small fan very suitable for use at home office travel shopping camping easy to carry]