■ Three Up CF-T2125 White Cordless Mini Circulator Swivel, 3-level air volume, main unit, charging cable (not original) It's very quiet, so it's fine to use it by your pillow in the summer. ● Charging time: 7 hours, Continuous operating time: 3.5-11 hours Lithium-ion 3.7V 4000mAh ● Continuous use for up to approximately 11 hours when blowing air on "Low", also for preventing mold in the toilet or entrance. ● Cordless type that doesn't take up much space and is easy to carry. You can use it without any particular problems, so thank you.