Panasonic Additional Handset/Charger for Cordless Speakerphone Digital Answering System Cordless Speakerphone Digital Answering System, Additional Handset/Charger Unit Lines—1 Speakerphone—Handset/Base LCD Display—5-Line Redial/Hold/Mute/Flash Speed Dial Stations—10 Distinctive Rings Memory Presets—50 Conferencing—4-Way Paging—1-Way Call Waiting/Caller ID—Call Waiting/Talking Caller ID; require subscribing to local phone company services Caller ID Memory/Redials—10 Auto Scan Channels—89 Dual Keypads Page/Handset Locator Headset Jack Handset/Headset Volume Control Multi-Handset Capability—Up to 8 Speakerphone Volume Control Ringer Volume Control Receiver Volume Control Tone/Pulse Switchable Additional Handset/Charger Unit—PANKXTGA550M (sold separately) Digital Anwering System Recording Time—21 Minutes Remote Access Time/Day Stamp Message Indicator Wall Mountable Additional Handset/Charger Unit Expansion handset for Cordless Speakerphone Digital Answering System (PANKXTG5571M), sold separately. Metallic Gray