Specifications: Product Name: Bladeless Hanging Neck Fan Product Weight: 275g Battery Capacity: 3000mAh Operating Voltage Range: 5V Power: 5W Running Time: 4-16 Hours Interface Type: USB-C Wind Speed: 5 Levels Short press to turn on 1st gear, short press again to turn on 2nd gear, 3rd short press to turn on 3rd gear, 4th short press to turn on 4th gear, 5th short press to turn on 5th gear to generate wind Features This portable bladeless fan has a service life of up to 8-12 hours. 5 wind speeds are adjustable. It features a 360-degree all-round air supply mode, a three-dimensional air outlet, and an up and down air outlet, doubling the freshness again and solving the problem of wind stagnation on the neck and wearing it all. Made of skin-friendly silicone material, it will not cause discomfort in direct contact with the skin. The neck-hanging design is very convenient; whether you are sitting or walking, it will not burden you and allow you to travel light. The noise level is less