THIS PEN COULD BE USED: As a normal ballpoint pen to write As an mp3 player to store and play your favorite songs As a recorder to record meeting, conversations and lectures (Recordings can be listened to directly from the pen or uploaded to your computer for playback) As a flash drive to transport all your important files with you To take verbal notes while you are working Very small, light-weight is suitable to reside in your shirt pocket. To secretly record conversations with persons whom you engage in conversation It is great gift for businessman, businesswoman, student, investigators. 1) With functions of ballpoint pen, digital voice recorder and MP3 player: Writing, voice recording, playing music, A-B repeat, etc. You can write conveniently while enjoying your favorite music 2) Supports: MP3, WMA, ACT, and WAV music file formats 3) Standard USB port 4) 7 EQs: Natural, rock, pop, classic, gentle, jazz, bass 5) A-B repeat 6) Super-thin light-weight, is suitable to reside in your shirt pocket. 7) 256MB/512MB/1GB available. 8) Superb quality digital recording in WAV format 9) Firmware upgradable 10) High power rechargeable polymer lithium battery inside, long time playing. After fully recharged, it can play for 8hours continuously 11) Uses 4 keys compositely, simply and convenient operation 12) Double color LED lights instruct working status 13) Supports recharging by USB or charger This is the best one among all digital voice recorder ballpoint pens on the market. 1. Because the built-in Mic is good quality and sensitive, It has the best sound recording quality (very clear recording) and could clearly record sound 10 meters away 2. The keys are very sensitive, respond quickly to all pushes 3. The size of keys are moderate, so it is very easy to use. We could also supply pens without our trademark etched on.