Multiple power supply: This USB desktop fan has multiple power supply including rechargeable, power bank, laptop USB charger or DC adapter. Lightweight: Made of high-quality abs, it is light and has good matte texture, pressure resistance and heat resistance. The design fits comfortably in your hands or placed on the desk with a removable stand. Super Quiet: We use the brushless motor for this fan USB, the brushless motor makes this fan very quiet when driving. The USB fan with quiet operation, you can sleep comfortably without noise disturbing you. Indoor:Portable fan is great to use both outdoors and indoors, which is suitable for many occasions, indoors: Home, office, study, dormitory and library, you can place it anywhere you want to stay cool and relax. 2-in-1 Clip & Desk Fan: Both can be attached and placed on the desk,which can be easily placed in any smooth place, perfect for stroller and office, laptop, gym, outdoor, camping, traveling etc.