1. Digital display design, gear position and battery capacity are clear at a glance; 2. Comes with a lanyard as standard, which can be used as a neck, waist or desktop hanger; 3. 2000 mAh battery, long battery life, and more 4. Built-in USB output, can be used as emergency power bank; 5. High-quality brushless DC motor, strong wind power Product operating instructions: Fan function: Press the switch once to activate the 1st air volume, press the switch a second time to activate the 2nd air volume, press the switch a third time to activate the 3rd air volume, press the fourth switch to turn off the power. cycle like this Display function: The three air volume levels display "01", "02" and "03" respectively; the remaining power displays "01-100%"; the low battery displays "LO"; the fully display "100%" Rated input: DC5.0V/1.0A Rated power: 5W Battery capacity: 2000 mAh Battery life: 1st air volume for about 8 hours, 2nd air volume for about 5 hours, 3rd fan for about 3 hours Charging time: about 2 hours Material: ABS colour: dark green Package Contents: 1 x Fan 1 x Type-c charging cable 1 x Lanyard 1 x English Instruction manual 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.