Water bottle and fan in one! Fan can be used as a 3 ways. 1) Operate from top of water bottle by turning on power. Adjustable fan head lets you customize airflow. 2) Remove fan from water bottle and extend base fully for hand-held option. 3) Fold base to use as a hands-free desk fan. Fan is battery powered by 2-AA batteries (not included). Unscrew top to add water, ice and take a sip. Convenient carry loop included. Fits most bicycle cages. 22 oz. BPA-free. Features: Water Bottle and Fan in one! Operate from top of water bottle by turning on power. Adjustable fan head lets you customize airflow. Remove fan from water bottle and extend base fully for hand-held option. Fold base to use as a hands-free desk fan. Battery Powered: Fan is battery powered by 2-AA batteries (not included). Water Bottle: Unscrew top to add water, ice and take a sip. Convenient carry loop included. Fits most bicycle cages. 22 oz. BPA-free.