•Model No.: DP-7621
•Battery Voltage: 4V
•Input: 5V 1A
•Battery Capacity: 2800mAh
•Using Time: 1.5/3/6 Hours
Strong wind/Middle wind/Weak wind
•Effective Wind Speed: 4.2 m/s
•Rated Power: 3W
•Working Mode: Power supply by USB or built-in battery
•Charge Time: 7 Hours
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