Didn’t Check in!? Sounds GREAT!
Over the summer holidays DNgroup helped Rejsekort optimize the systems sound interface. More precisely the error sound that lets the user know if he or she did not check in or check out correctly.
We have based the new sound on the latest sound research (square wave) that is very easy to hear also in very noisy environments like train stations and on rush hour busses.
We are proud of the results, Rejsekort is proud of the result and Berlingske wrote an article about it.