1.9Ghz / HD Voice Clarity / 15 minute digital answering system / 100 station phone directory / Built-in alarm clock / Up to 12 hours talk time # The DECT 6.0 Cordless Telephone with 4 Handsets by Philips features voice clarity as clear as a face-to-face conversation, wherein it puts the emotion back into a call. HD Voice Clarity brings people and their feelings closer together. The unique acoustic design provides a high-quality, rich Communication experience. DECT 6.0 Technology: interference free communication, increased clarity / enhanced security, wider range / Network friendly # 1.9GHz Cordless Phone # HD Voice Clarity: high-quality speaker offers crystal clear conversations # Single Line Operation # Caller ID / Call Waiting (subscriptions service may be required) # Expandable up to 5 handsets (only 4 handsets are included, but with the Option of adding an additional handset) # 15 Minute Digital Answering System: 2-digit LED message counter, skip / repeat, 1-touch message playback # Speakerphone # Backlit LCD Display (4-Line) # Illuminated Keypad # 50 Station Name / Number Caller ID Memory # 100 Station Phone Directory / Dialer # Adjustable Volume Control (Off / High / Low) # Easy Operation (Menu Driven) # Tone / Pulse Dialing # Personalization / Customization Wallpaper # Built-in Alarm Clock # Up to 12 hours talk time & up to 150 hours standby time # Battery Charge Indicator # Keypad Lock # Battery Powered (Requires 2 AAA Batteries) # Microphone Mute # Signal Strength Indicator # In the box: # 1 Base / Cordless Handset # 3 Cordless Handsets / Chargers