LINLONG Folding Silent Fan Portable Hanging Neck Charging Treasure Small Fan Desktop Dormitory Mini Fan. ????????

power supply mode: USB Noise: 51-70db Air delivery mode: turn page color: folding fan (can be charged treasure) pink, folding fan (can be used as charging treasure) blue, folding fan (can be used as a charging treasure) Charging treasure) white, folding fan (can be used as charging treasure) black, hanging neck fan black", hanging neck fan "white", hanging neck fan "blue", hanging neck fan "pink" whether to turn the page fan: yes built-in battery capacity: 3000mAh Rated power: 5W whether the battery is built-in: is the speed gear: third gear fall self-stop: does not support operation mode: mechanical the applicable area: 0.5 m2 whether charging is supported: package volume: 162 x 80 x 17 Rated voltage: 5V Rated frequency: 5W ."