The Samsung U310 Knack is a basic flip phone works with Verizon. It has an external display that shows the time, date and battery and signal strength. The U310 Glimmer supports text messaging. You can also use this phone for your personal organizer like the calendar and put notes on the dates where you needed to do something or birthdays. Added features like the speakerphone, voice-activated dialing and predictive text input. Buy this used Samsung U310 Knack flip phone at a very low price.