【Solar & USB Dual Power】 Runs on free solar energy (direct sunlight) OR USB rechargeable (10000mAh battery lasts 5-20 hrs). Perfect for blackouts, off-grid living, and outdoor adventures. 【3 Speed Quiet Cooling】 Adjust between low, medium, and high speed for personalized airflow—strong enough for camping, gentle enough for bedtime. Super quiet (<30dB) for peaceful sleep. 【Ultra-Portable & Lightweight】 Compact foldable design makes it ideal for hiking, beach trips, tents, RVs, strollers, and workshops. 【Emergency Survival Essential】 A must-have for hurricane season, power outages, and bug-out bags. No electricity? No problem—just sunlight or a power bank! 【Type-C Charging & Eco-Friendly】 Fully charges in 4-5 hrs via USB (cable included) or 6-8 hrs in direct sun. Zero electricity cost—saves money & the planet!