OPOLAR Handheld Misting Fan with Improved LG Battery, Mini USB Fan, 2200mAh Rechargeable Battery, 3 Speeds, for Persoal Outdoor Use - Black Mini humidifier, misting fan and portable USB fan in one Humidifier operates independently or with fan; Continuous or intermittent misting modes at your choice. 3 Convenient fan speeds- low, medium, or high, with a max. airflow up to 3.3m/s. Powered by a upgraded LG 2200mAh rechargeable battery or by being connected with a USB cable. Battery works 2-7 Hours for a fully charge. Backed by a one year guarantee and friendly customer support from OPOLAR