Real capacity --2GB, 4GB, 8GB Weight:2g Extremely small footprint design Dimensions -- .43" x .59" x .039" (11mm x 15mm x 1mm) Storage temperature -- -40o f to 185o f (-40o c to 85o c) Operating temperature -- -13o f to 185o f (-25o c to 85 o c) Op. Voltage:2.7v~3.6v Perfect for mobile phones and portable devices Warranty: one year 1000pcs/lot Dimensions:48.5*28.5*20.5cm Weight:7.5kg