The My Details section allows you to edit all of the information within your Account about the user that is currently logged in. This will allow you to update your Name, Password and Region. My details can be found from within the app by going to Settings > My Details.
To update the name belonging to the logged in user, simply click the Edit icon next to Name, where you can update the first and last name. Once happy, click Save.
To update your Password, again, click the Edit icon next to Password. You will be required to enter your current password along with entering a new password twice. Once happy, click Save.
Finally, to edit the Region belonging to your Decibel Insight user account, click the Edit icon next to this and select your region from the drop-down. Once happy, click Save.