<b> Hand Free Headphone Design Wearable Portable Neckband Mini Fan with USB Rechargeable for Traveling Outdoor Office </b></br><b> Features: </b></br> Can hang on the neck with string </br> Quiet and low noise </br> 3 speeds winds </br> Rechargable battery and USB charge </br> Mini size but strong winds </br> Good for outdoor activity </br></br> <b> Specifications: </b></br> Color: Black,White,Blue </br> Material: ABS </br> Input Voltage: 5V </br> Input Current:0.5-1A </br> Output Voltage:5-9V </br> Speed Mode: 3 ranges </br> Item Weight (including battery):185g/0.41lbs </br> Package weight: 222g/0.49lbs </br> Working Time: 2-6 hours </br> Dimension: 120*88*38mm </br> Output Power (max): 4.5W </br> Package size: 145*99*38mm </br> Charging Time: about 4 hours </br> Battery Specification: 18650 Li-ion（Rechargeable）</br></br> <b> Use Note Tips: </b></br> 1. Take off the battery cover and install 18650 battery on the fan, and then close the cover. </br> 2. Press the "ON" button, the fan will start working and enter the first range (Minimum wind) at the same time; </br> 3. Press the "ON" button again, it will enter the second range (Medium wind); And then press the "ON" button again, it will enter the third range (Strongest wind); </br> 4. If press the "ON" button again, the fan will stop working. No matter when the fan in which range, once press the "OFF" button, it will stop working. </br> 5. Light indicator: light is red when it is charging, the light will change green when charge full. </br> 6. Micro USB is the charging input end and Standard USB is the charging output terminal. </br> 7. Before use, please take install the battery and plug the charge cable to give it full charge. </br> 8. Please take off the battery if long time no use. </br></br> <b> Package includes: </b></br> 1* Portable Mini Necklace Rechargeable Fan </br> 1* String </br> 1* 18650 Li-on Battery </br> 1* USB Charging Cable </br></br>