1、SOLAR AND TYPE C CHARGING: You can charge it with the 3.8W high efficiency monocrystalline solar panel during outdoor adventures such as camping, fishing, and hiking. Not only can you charge with solar power, but indoors you have the option of Type C charging. 2、4 ADJUSTABLE SPEEDS: It utilizes an advanced brushless motor that works to improve efficiency and durability. With 4 adjustable speed function, it gives you a personalized cooling experience. You can experience a maximum air speed of up to 4.5m/s. Ultra thin fan blades ensure superior airflow with minimal noise (<25dB), while the triangular case design ensures smooth operation even at the highest speeds without disturbing your work or peaceful sleep! 3、MULTIFUNCTIONAL: Our fan comes with a 5200MAH battery and can enjoy up to 18 hours of wind on the lowest setting and 8 hours on the highest setting. Featuring a indicator light design that reminds you to charge on time. In addition to cooling, this fan can be used as a power bank with two charging ports (input and output) to charge smartphones, laptops, and outdoor essentials. 4、THREE BRIGHTNESS LEVELS AND TIMER SETTINGS: This fan features three adjustable brightness settings and a super bright LED camping light with 16 beads. It also has a timer function that you can set to automatically turn off after 2, 4 or 6 hours depending on your preference. This not only saves power, but also ensures a calm night's sleep. 5、STURDY AND DURABLE: Our solar fan is made of premium ABS and metal material, which has strong durability and can be used for a long time, coping with various outdoor environments with ease. Item Type: Solar Fan Material: ABS, Metal Weight: Approx. 1024g / 36.1oz Battery Type: Lithium Battery, 5200MAH (Built In) Product Size: Approx. 17.5x7.5x23cm / 6.9x3.0x9.1in 1 x Solar Fan 1 x Instruction Manual 1 x USB Cable