These Panasonic KX-TG1614EH quad telephones have a whole host of useful features including a 50 name and number phonebook and caller ID. They also features last number redial and have a call log with a capacity of 50 calls.The KX-TG1614EH comprises a set of 4 handsets and bases with a 50m indoor range. Fully charged, the phones have a battery life of 150hrs in standby and 17hrs in talk time.