mini ventilator 1)USB or AA battery power supply 2)Mini size,portable,gorgeous ... ×115×208 mmProduct weight0.185 kgsCable length1.2MBattery4 AA batteries operation availableFeatures:1.2300RPM speed,96mm blade diameter ... 2.5V USB(cable length:1.2m) or 4 AA batteries power supply, plastic shell, special mesh enclosure design ... , comfortable. Portable pedestal USB mini ventilator with AA battery operation