①. Headphone style USB fan, can be worn around the neck, free your hands. ②. The neck fan is bladeless, so there is less worry about hair and hands getting caught on the fan blades. ③. The air outlet can rotate 180 freely and blow across your face. It is a good partner when working in hot weather. ④. The personal fan has low, medium and high three modes. Press the power button to set. ⑤. The working time is 5 - 12 hours (depending on the wind speed) due to different speeds. ⑥. It can be quickly charged via USB, wall charger, computer, mobile power and car charger. To fully charge, you can enjoy the cool breeze in the afternoon. ⑦. It is small and lightweight, convenient to carry. The bladeless design prevents hair from getting into the fan, is friendly to people with long hair, and is safe for the elderly and children to use. ⑧. Package Contents: - 1 * Portable Neck Fan - 1 * C Cable - Long - lasting Battery (4000 mAh) ⑨. Usage Hours After Full Charge: - Speed 1: 11 Hours of Operation - Speed 2: 8 Hours of Operation - Speed 3: 5 Hours of Operation ⑩. This personal fan is easy to use with one button. Short press the button to turn on the fan, press again to adjust the wind speed or turn off the fan.