A cool breeze makes the heat pleasantly bearable. Olsenmark OMF1790 rechargeable fan with light can meet most of your cooling needs in summer with a comfortable breeze. It is great for hot summer days.Multi-Functional FanIt's a combo of desktop fan, clip on fan, aroma fan. Can be placed on a desk or clipped to any position you want.A Backup Power BankDesigned with a 5V USB output port, the fan not only can cool you down, also can be used as a emergency power to charge your phone, GPS, MP3 or other small electric devices when you go camping or traveling.Support USB/Battery PowerNo power? No problem. This fan can work with rechargeable batteries wirelessly. Fully charged battery can last up to 3-4 hours, perfect for using outdoor or in hurricane season.