5.8GHz digital system: The 5.8GHz frequency technology lets you go anywhere in your house and still have clear reception, without interfering with your WiFi network. The frequency-hopping digital spread-spectrum technology keeps calls secure from outsiders. Shock and splash-resistant construction: Rubberized trim helps the handset stand up to everyday wear and tear. This phone is even protected against accidental splashes, although the handset is not designed to be fully immersed or held under running water. Two versatile handsets: The two full-featured handsets have speakerphones that allow you to make convenient hands-free telephone calls. Built-in handset intercoms let you stay in touch with family members throughout the house. Call-waiting caller ID: See the name and number of the caller on the 3-line, backlit LCD screen. You'll know who's on the phone before you answer?even if you're on the other line. Requires phone company service. Digital answering system: Record messages without hassle on this tapeless digital system. The time-and-day stamp lets you know exactly who called and when. 3-way conferencing: This convenient feature lets up to three people conference. Visual ringer: Turn off the ringer and enjoy your quiet time. The visual ringer lights up when someone's calling, so you don't miss a thing. Headset-compatible: Keep your hands free while you answer the phone. Headset sold separately. Lighted keypad: Dial correctly with the lighted keypad, even in the dark. Voice enhancer technology: Improved sound reception creates natural-sounding voices that are easy to hear and understand.