Uniden DECT 1735 + 1 uses the Wireless Friendly DECT technology and has an integrated digital answering machine with message counter so you don't miss those important phone calls. These phones are ideally suited to high density living environments and have an excellent array of features suitable for any home. They have great talking range, unique styling, 3 line backlit display LCD display and are Wireless (WiFi) Network friendly. The digital duplex speakerphone on the handset makes handsfree communication a breeze. Features: Integrated Digital Answering Machine with 14 Minutes Answering Machine Recording Time POP ID - Caller Name Identification 70 Phonebook Memories and 30 Caller ID Memories Choice of Different Ring Tones Maxi Sound - Extra Loud Handset Volume Control Wall and Desk Mountable NBN Compatible Power Failure backup Replacement battery: SB1654 2.4V Ni-MH 650mAh