Product name: Storage neck fan Rated input: DC5.0V/1.0A Working current: 0.25-0.9A Rated power: ≤4W Battery capacity: 1600 mAh Battery use time: 1st gear air volume about 6 hours, 2nd gear air volume about 3 hours, 3rd gear fan about 1.5 hours Charging time: about 3 hours 1. compact and portable 2. Polymer lithium battery, and more 3. High-quality silent brushless motor, strong wind 4. One-button operation, 3 gears adjustable air volume Product operation instructions: Fan function: the switch once to start the 1st gear air volume, the switch for the second time to start the 2nd gear air volume, the switch for the third time to start the 3rd gear air volume, the switch for the fourth time to turn off the power. The above cycle Indicator light description: The fan working status indicator light is blue, the charging status indicator light is red, and the fully indicator light is green Color: As shown Material: ABS Package Contents: 1 x Fan 1 x Data cable 1 x Instructions in Chinese and English Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.