Barcode scanning App for Android

I need an android app for scanning bar-codes and provide a small description about that product. This app will work for any electronic product having a bar-code. Please provide me any sample which you have done in past. similar work will be given higher priority since this is an urgent job. Serious bidders only. Fast turn around time since this job is very urgent. Freelancer who have done similar work before will be given preference. Successful freelancer will get more jobs from us.