3 Gears Adjustable 1600mAh USB Rechargeable Portable Summer Air Cooling Hanging Neck Leafless Fan Outdoor Sports Travel Personal Wearable Aromatherapy FansFeature:1: The hose can be stored, compact and portable; 2: Lithium polymer battery, safer and more secure; 3: brushless motor, strong wind; 4: One-key operation, 3-speed adjustable air volume; 5: aromatherapy function, essential oils can be added on the air inlet; 6: simple appearance, simple and elegant matching color; Specification:Product Name: hanging neck fanProduct color: green/greyProduct size: 118x59x4 2mm/4.65x2.32x1.65inBox size color: 123x65x6 7mm/4.84x2.56x2.64inProduct weight (bare metal): 177gProduct weight (including packaging): 230gPackage: thin pit-color boxRated input: DC5.0V/1.0A Working Weight: 0.25-0.9aRated Power: le; 4W Battery Capacity: 1600mAhBattery Usage Time: About 6 hours for 1. Run, about 3 hours for 2. Run, 1.5 hours for 3. GearCharging Time: About 3 hours Product Material: ABS/Silicone/Electronic Components Product Manual:Fan Function: Press the switch once to start the first gear Press the second switch to start the second gear; Press the third switch to start the third gear; Press the fourth switch to turn off the power. The cycle given above. Indicator description: the fan running status indicator is blue, the indicator is