Integrated with GPS and technique of electronic map, DEH Audio is an application that makes Audio POIs. Use DEH Audio , the system will automatically capture the longitude and latitude of corresponding POI when the user is recording audio; after filling in the name and another data, the user can write down the content, and then it can be saved in the users devices. The user can upload it to the server of DEH when they have internet. After uploading, the user can view it through DEHs APPs called DEH Lite or DEH Mini.