I originally wanted to buy a voice recorder to take notes in class with. So I order a 8GB Keychains Digital Voice Recorder in Tmart.com. I did not think this product can not only record, but also 8G of memory, I did test, and filled with a battery, actually you can use 15 hours, this I was particularly pleased, and sometimes a whole day out, charging is not very convenient, it makes me satisfied. I was satisfied with this shopping.