[Premium quality recorder with excellent sound]The digital voice recorder with playback is equipped with very sensetive microphone and upgraded chips to record stereo voice, supporting 1536 kbps PCM recording. with DSP noise reduction technology to filter environmental noise, you can get stable clear sound as if the speaker talk to you face to face.(we supply authentic english user manual for every buyer to guarantee free use).[optimized menu design,friendly to new user] With several simple clicks, it is so easy for new users to understand and operate. Press REC up, begin to record. Shift REC down, begin to save. Click play then listen to the recording..[Super capacity in Battery and Memory] 16GB built in flash memory can record for 70 hours files. after it was full charged for about 2 hours, it can work for 40 hours continuously. make sure the user use it willingly.This mini recorder is suitable for class, lectures, speeches,interviews and so on..[Wide use voice activated recorder]After you set on the VOR function,the voice activated recorder only record voice when there is sound, it will stop recording when there is no sound.so it will save much space and time for you while you listen to the files.so great device for professor,student,doctor,interviewer and so on..[Professional flash memory, fast transfer]There are two jacks on the digital voice recorder, one is for earphone to listen file, the other one is for external microphone to record telephone or voice.also our sound recorder built-in memory is flash memory, much better than other memory card, you can record and transfer files more stable and quickly.after connecting the recording device with computer,you can upload or download files so easily.