Specifications: 1 Gb Flash Memory. Up To 408 Hours Of Recording Time. 3-Mode Recording Include Hp For 102 Hours (20 Kbps) Mp For 204 Hours (10 Kbps) & Lp For 408 Hours (5.2 Kbps). 4 Message FoldersEach Folder Stores Up To 99 Messages. Full Function Lcd Display.