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