The Jitterbug J SPHA310ZRA Pre Paid Cell Phone is extremely intuitive and customizable. Only see the features you want. The lower part of the display screen, called the "Command Area", displays simple ‘Yes’ or ‘No’ questions that make using the phone very easy. For example, if you’re using your Phone Book and the name of your friend or family member is highlighted, the Command Area will display the question, "CALL?" To place the call, simply press the "Yes" key or use the scroll key to move to the next entry in your Phone Book, just like changing channels on a TV remote. Also, the battery provides up to 4 hours of continuous talk time before needing to be recharged, depending upon how much you use your Jitterbug and the cellular radio signal in your area.