RCA 2102-1 DECT Cordless phone features interference free DECT 6.0 Technology, and is expandable with up to 4 handsets. Other features include: call waiting caller ID, 50 name and number directory, 10 ringtones to choose from, handset locator, Mute, call transfer and intercom functions, and an integrated digital answerer with remote message retrieval. Hearing aid compatible. This item includes 1 handset.