The most recent Jitterbug manual is available through the Samsung website. The Manual link on the left side allows users to download it in PDF form.
The Jitterbug is a phone specifically made with a limited feature set and larger displays and buttons. It is intended to help seniors who may have difficulty with other phones or smartphones.
As of 2015, recent Jitterbug phones have been made by Samsung and are on the Samsung website. However, many versions of the phone have been made; their manuals can be found at many websites that specialize in manuals including Central-Manuals.com. Enter Jitterbug into the search window for a list of the manuals it has available.