This recorder has a very crisp clear sounding playback. The microphone is voice activated and picks up sounds very easily. It comes with a USB cable that charges the rechargable batteries in the recorder unit. It's small in size but feels very sturdy with a very durable construction. It has 16gb of internal memory and states it can last 47 hours of continuous recording at 32kbps, or 12hours at 1536kbps! Simple plug-in charge. So far I've only used it a little over an hour of continuous recording and it still shows plenty of battery left for recording. The MP3 player is such an added great feature. I really like all of the features and size of this digital voice recorder and would recommend it highly for the price.