Philips SE7452B Enhanced High DefVoice Digital Dual Cordless Phone Answer Machine Advanced digital cordless phone system with DECT 6.0 technology and 2 handsets SIM card slot for downloading SIM card phonebook entries and for sending SMS text messages Can hold up to 50 phonebook entries Robust speakerphone capability Battery life supports up to 12 hours of talk time and up to 150 hours of standby time