1, Support 1GB to 4GB capacity
2, Line-in recording and the hearing-aid function
3, Support multi-language
4, Built-in dual microphone,Stero dual channel
5, MP3 recording format, recording distance 20meter
6, Support telephone conversation recording
7, MP3 ,  A B C D five recording folder
8, Support VOR function
9, Support A-B repeat function
10, Recording mode:SHQ/HQ/SP/LP
11, Automatic turn off to save power
12, LED recording indicate
13, Power support: 1 X AAA battery