General description The S8 Negative Ion Hanging Neck Fan is a simple and convenient solution for staying cool during outdoor activities or travel. This leafless mini fan operates silently, making it ideal for use in various settings. Technical specifications Product Model: S8 Battery Voltage: 3.7V Product Size: 129 x 76 x 41 mm Negative Ion: 25mA/0.1W Product Net Weight: 167g Battery Capacity: 18650-1200mAh Charging Voltage: 5V/0.8A Service Time: About 3.4h on first speed, 1.8h on second speed, and 1.0h on third speed Working Current/Power: 285mA/1.1W on first speed, 530mA/2W on second speed, 960mA/3.6W on third speed Color: Pink Material: ABS + electronic components Usage Use a normal 5V adapter for charging. The red light indicates charging; it turns off when fully charged. Short press the button to cycle through three speed settings and activate the self-light. Press and hold the button for 1.5 seconds to turn on the negative ion and rainbow function. Press and hold for 5 seconds