Caller ID Cordless Phone Phonebook 2.4GHz frequency support, AAA NI-MH battery providing talk-time of 5 hours and standby time of 264 hours Panasonic Landline Phones doesn't come with a manufacturing seal. lluminated LCD display with alphanumeric keypad. Wall mountable phone 14 ringer melodies, 6 ringer tones, any key answer, time display and redial. The box includes handset, base, battery, charger and user guide,the batteries must be inserted in the cordless and headset must be placed on the base so that the phone is charged for 7-8 hrs before initial use.