Features: 1: The hose can be stored, compact and portable; 2: Polymer lithium battery, safer and more secure; 3: Brushless motor, strong wind 4: One-key operation, 3-speed adjustable air volume; 5: Simple appearance, elegant color matching; Product parameters Product name: storage hanging neck fan Rated voltage: 5V Rated power: 4.5W Battery capacity: 2000mAh Weight: 290g Product size: 71*143*46mm Color box size: 98*158*52mm Product operating instructions: Fan function: press the switch once to start the 1st gear, press the second switch to start the 2nd gear, press the third switch to start the 3rd gear, press the fourth switch to turn off the power. The above cycle; Indicator light description: the fan working status indicator lights up blue, the charging status indicator lights up red, and the fully charged indicator lights up green; Battery usage time: about 6 hours for 1st gear, about 3 hours for 2nd gear, 1.5 hours for 3rd fan Charging time: about 3 hours Product material: ABS/silicone/electronic components Details of accessories included with the product: fan host*1, charging cable*1, Manuals*1