Portable Travel Fan for Cruise Approved, 4000mAh Cruise Essentials 2026 Rechargeable Fan100 Speed Wind Adjustable, Small Travel Essentials for Hotel Beside Sleeping Cruise Ship Must Haves

https://www.amazon.com/Portable-Essentials-Rechargeable-Adjustable-Stateroom/dp/B0DTP1PSQT/ Decent airflow, rechargeable so you can put it on your bedside even if there is no plug there, and folds flat to easily fit in your suitcase.