... mute. 4.Color choosable,excellent workmanship 5.With battery. 5V dc 4 micro cooling fan with battery Features:1.2300RPM speed,96mm blade ... :1.2m) power supply, plastic shell ,special mesh enclosure design, all has been done by smoothing processing, very safe.3 ... , can be used continuously with long time5..Smart support and pedestal design, noble and elegant.6.Fan is with control switch, its angle ...