DECT 6.0 technology; 3 handsets; Expandable up to 12 devices (2 devices can be cordless headsets) ; 50 name-&-number phone book directory; Up to 14 min of digital recording time; Last 10-number redial; RoHS compliant; ENERGY STAR(R) compliant; Hearing aid compatible; Conferences between an outside line & up to 4 cordless handsets; Trilingual prompts in Eng, Sp & Fr;