With 2 lithium batteries of upto 4000mAh this rechargeable table fan goes on for a long time based on the speed. Integrated with low, medium and high mode. This table fan can be set based on the room temperature. Conveniently you can use a?USB?charger to charge this fan when low on power. With a tilting angle of upto 110? angle, this table fan is adjustable based on your sitting preference. The fan can be used as a?portable?ceiling fan. It is strong, lightweight, rust-resistant and long lasting.With 2 lithium batteries of upto 4000mAh this rechargeable table fan goes on for a long time based on the speed. Integrated with low, medium and high mode. This table fan can be set based on the room temperature. Conveniently you can use a?USB?charger to charge this fan when low on power. With a tilting angle of upto 110? angle, this table fan is adjustable based on your sitting preference. The fan can be used as a?portable?ceiling fan. It is strong, lightweight, rust-resistant and long.