■Features/Uses: ● Power bank fan set. By using the included booster cable for a 5 V power bank. Maximum output of 9 V and produces a maximum of 12.8 gal (58 L) of wind. Experience the amount of airflow that is not inferior to conventional dedicated batteries; Fan cover, motor, and blades can be disassembled; Can be washed with water. For heat prevention. ■Specifications: ●Color: Set of 2 fans; Max Air Flow: 58 L; Continuous Operating Time: (Display H) (9V) about 4 hours, (Display M) (7.5V) about 6 hours, (Display L) (6V) about 9.5 hours (continuous operation time varies according to the value of full charge, wearing conditions and environment); ● Set Contents/Accessories: ● Dedicated cable x 1 Instruction manual (English language not guaranteed). Note: Power bank is not included. . The motor cannot be washed with water. Please do not spray the fan with high pressure air such as an air compressor to remove dirt. Please do not let the fan absorb any foreign objects such as the string during use. ● Please contact the manufacturer for defective power bank.