<b>Operating instruction: </b><br><br> 1. The "ON" button: Click the button, the fan will cyclic shift, press once to change a speed, the sequence is " 1 speed - 2 speed - 3 speed -LED light on- power off ". Long press the "ON" button when fan is working at any speed, the gorgeous blue light will emit. <br> 2. The "OFF" button: quick shutdown button.<br> 3. Working mode indicator. <br> 4. Charging indicator light, red light for charging ,green light for fully charged. <br> 5. Charging the battery through the Micro USB input. <br> 6. Portable power, USB output. <br><br> <b>Specification </b><br><br> Speed Mode : 3 ranges <br> Working time(H): 2-4-8 <br> Battery Specification: 18650 Li-ion battery <br> Battery installation: removable <br> Input: DC 5V, 0.5-1A <br> Output: DC 5V-9V <br> Output power: 4~4.5W <br> Charging time(H)： 4 - 5 <br> Dimensions: 140 x 105 x 42mm <br><br> <b>Mini Fans Advantages: </b><br><br> ★Unique structure, fashionable design <br> ★Small and exquisite, easy to carry <br> ★Ball fan, wind strong and durable <br> ★Digital control , simple operation <br> ★Machine welding, stable and reliable <br> ★Battery is removable , easy to replace <br> ★USB connector , easy to charge with any USB power outlet <br> ★High efficiency and low lose, energy saving and environmental protection<br> ★LED charging indicator light <br><br> <b>Package Including: </b><br><br> 1 x RingRingshop Main fan engine <br> 1 x USB Cable <br> 1 x 18650 battery <br> 1 X User Manual<br>