... : ABS less heat operation, Safe and soft nylon fan blades. CE , ROHS Approved. Led Flashing Plastic Mini FanMaterial: ... batteryLow Noise operationless heat operation, Safe and soft nylon fan blades.Power saving designProvides cool air while workingWarranty period: ... do not mix alkaline, standard (carbon-zinc), heavy duty or rechargeable batteriesdo not dispose of batteries in fire because batteries my ...