Content Ideas: Sun Cooling: Cool your head while walking directly under the sun. Solar Power: Works with solar energy without continuous charging. Daily Comfort: Lightweight and comfortable for daily use. Sports and Movement: Suitable for running, walking, and outdoor activities. Camping and Desert: A practical solution to relieve heat during trips. Backup Battery: Has a battery that supports operation when needed. Ventilation and Comfort: Fabric allows good ventilation during use. Features Works directly with solar energy and without a battery. Has a 600 mAh backup battery for charging. Three fan speeds, choose what suits you. The fan is soft and safe, it will never hurt your head. Charges via USB in two to three hours. 100% polyester fabric allows excellent ventilation. The fan is detachable, and the cap can be machine washed. Small screen displays battery level and speed. Buckle closure, you can adjust its size to your head. Suitable for golf, walking, fishing, camping, and farming. Specifications: Material: 100% Polyester Battery Capacity: 600 mAh Full Charging Time: 2 to 3 hours Operating Time at High Speed: 2.5 hours Operating Time at Medium Speed: 3 to 4 hours Charging Input: 5V 2W Power Output: 4V 1W Fan Material: ABS Power Source: Solar or USB Fan Speeds: Three adjustable levels Closure: Adjustable buckle Box Contents 1 x Sports Cap 1 x Solar Fan attached to the cap 1 x USB charging cable How to Use Press the button once for the first speed and repeat for the second and third. Go out directly under the sun, and the fan will turn on by itself. Press the button for three seconds until it flashes, then press three times. Charging via USB: Connect the cable to the side port and let it charge for two hours. Remove the fan from the cap and wash the cap in the washing machine with ease.