... high speedCapacity128MB, 256MB, 512MB, 1GB, 2GB,4GB,16GB(Optional)Storage DeviceRemovable Storage DeviceCard typeN/AA-B RepeatAvailableEQ ModeNormal, Rock, Pop, Classical, Soft ... ~ +55; Other Flash:-0 ~ +55Operation Relative Humidity*20% ~90%(40C)Storage Relative Humidity*20% ~93%(40C)SizemmL*W*H :35X35X9.5MM ...