Premium Smartphone Compatibility: Designed for latest smartphone models with cases, featuring strong N52 magnet for secure attachment Extended 2000mAh Power Capacity: Built with advanced polymer battery offering 2 5 hours of cooling duration depending on settings USB charging enables efficient power restoration for outdoor use Efficient Quiet execution: 7 aerodynamic fan delivers three intensity picks while maintaining 25 30dB sound output Integrated phone holder also serves as anti slip grip when streaming or browsing content Multi functional 4 in 1 Setup: Works as phone mounted cooling device, attachable umbrella fan, foldable stand, or handheld fan Great for shopping, working, or video watching with easy handling Fully Adjustable Silicone Tube: Features 4.9cm reinforced hose with memory wire for accurate wind direction Customize cooling positions for optimal comfort during different activities