Brand Panasonic Colour Black Telephone Type Cordless Number of Batteries 1 Lithium Ion batteries required. (included) Material Plastic About this item Cordless phone with caller ID, With Speaker Phone 2.4GHz frequency support and rechargeable Ni-MH battery Digital answering system with 50 name and number caller ID memory, 100 name and number phonebook entries Large 1.8-inch LCD display Smart wall mountable phone, message counter on LCD display, power failure talk system and reversible handset The box includes handset, base, battery, charger and user guide Panasonic Landline Phones doesn't come with a manufacturing seal. These phones are new and have brand warranty on them. First of all, please check if you have subscribed to Call Waiting service. If you are, refer to base programming to set the flash time to 300m