Multi-Purpose Aroma Hub: Customize your workspace ambiance with essential oils or mosquito repellent. The detachable aroma cartridge features a scent-neutral filter pad, simply add your preferred perfume, essential oils, or mosquito repellent to craft a fully customizable ambiance. Focus Mode: Peppermint/lemon essential oils boost concentration; Sleep Mode: Lavender/chamomile blends for relaxation; Outdoor Mode: Citronella-based mosquito repellent compatibility. 4000mAh Battery: This is a 4000 mAh battery powered rechargeable table fan. 4-9hrs runtime with 4-speed adjustment. Charging input 5V/2A. The package includes a dedicated USB-C charging cable with universal compatibility-seamlessly connect to wall chargers, car outlets, or laptops. After fully charged, you can enjoy up to 9 hours of cordless cooling. What's more, it's battery operated but you can also use it while charging. Work Desk Essentials: This space-saving designed desktop fan is indeed a great tool for thos