1. No installation, only need to connect the charging cable. 2. Adopt 12 inch leafage, the fan's power is about 12W, and wind power is very strong. 3. Can be used indoor and outdoors, especially in emergency. 4. Two ways of charge: AC and DC. 5. Be protected automatically when the fan is connected reversely. 6. The color box is firm and can be used to protect the fan. 7. Adopting brand-new ABS shell, it looks beautiful and the configuration is strong.