BALL PEN ONE KEY TO RECORD, EASY TO OPERATE. BUILT-IN FLASH MEMORY BUILT-IN HIGH-SENSITIVE MICROPHONE. CONNECTING, DOWNLOADING, UPLOADING WITH THE COMPUTER. MP3/WMA PLAYBACK BATTERY INDICATOR FUNCTION PORTABLE DATA STORAGE FUNCTION LOWER POWER CONSUMPTION SPECIFICATION: SOLUTION: DSP901N FLASH MEMORY: 2GB DIMENSION: ƑÓ=12.5MM,L=131MM POWER SOURCE: BUILT-IN POLYMER BATTERY MEMORY MEDIUM: BUILT-IN FLASH MEMORY MICROPHONE: BUILT-IN CAPACITOR MICROPHONE INPUT: BUILT-IN MIC CONDITION TO USE: 0-40 RECORDING TIME: LP REC MODE: ABOUT 266 HOURS; HP REC MODE: ABOUT 16 HOURS;