1. support MP3，WMA ，ASF，WAV format,support MP3 Quran file
2. Action 2091N solution；Super long voice recording；
3. support 128MB，256MB，512MB ，1GB，2GB，4GB　
4.inside 250mAh lithium battery 581145
5.FM function for choice add USD1.2
6.Pen function, the pen can be changed