Uniden DECT 6.0 Digital Caller ID Cordless Phone (DECT1560) Handset Speakerphone Expanability - 6 handsets to 1 Base Interference Free from all devices DECT 6.0 Technology Wireless Network Friendly DECT 6.0 Technology Interference Free from all devices Wireless Network Friendly Expanability - 6 handsets to 1 Base Handset Speakerphon