Long Life Battery Talk for extended durations A large capacity battery enables a maximum talk time of 16 hours so you can talk for extended durations. The handset can also be left for approximately 8 days without calling. DECT Security Protect calls Communications between the cordless handset and base unit are encrypted, and the encryption password is periodically changed to maintain a high level of security. Easy to Hear Answering System Sound A noise reduction function and large speaker enables recorded messages to be clearly played back.