Energy Saving, Clip On, Solar Fan, Portable Travel Fishing Mountaineering feature: The one with the solar fan cap clip will give you a cool breeze It will make you comfortable, cool and let you enjoy the cool Solar powered, no batteries required, only works in direct sunlight The brighter the sun, the faster the fan spins Portable, energy-saving, eye-catching, pollution-free describe: Clipped to a visor or handheld, it will give you a cool breeze. Use sunlight to emit light to the solar panel, convert the light energy into electrical energy, and drive the micromotor to make the fan work. In hot summer, it is your best choice for outdoor activities such as fishing by the river, hiking, golfing, partying in the square, watching theaters, watching balls, etc. Specification: Panel size: 58 x 48mm Fan diameter: 73mm Fan diameter: 6 cm maximum. Speed: 2800RPM Colour: Black Base type: random round or square Package Contents: 1 x solar fan (random base type)