Power supply mode: USB Specification: 215*186*62mm Category: USB fan Product Features: Convenient for movement, Outdoor noise: below 36dB, Rated voltage: 5V, rated power: 3.5W, air supply mode: No rotating page, no shaking head, wind speed Settings: 3, Operation mode: Mechanical, does it support charging, speed regulation Settings: 3 It stops automatically after falling and does not support page rotation. The gross weight is 346g. The color is elegant: white, forest green, cherry blossom pink, and ocean blue. The fan blade diameter is large and can be negotiated. The item number is F2. The main downstream platforms are ebay, Amazon,wish, AliExpress, independent stations, and LAZADA. The main sales regions are Are there any authorized self-owned brands in Africa, Europe, South America, Southeast Asia, North America, Northeast Asia and the Middle East? Is there a dedicated supply source for cross-border export? Is there a built-in battery? Is there a built-in battery with a capacity of 1200 mah? Is there a patented supply source? Function: neck-hanging movement. Motor type: brushless motor. Number of fan blades: bladeless shell. Process: injection molding