SteelTrap® memory technology - no batteries required TouchLite® feature provides visual indication of voice mail messages plus one-touch message retrieval Two-line operation Eight-step "soft" volume control toggle Conference key with automatic reset ("soft key" control) Two-way speakerphone Microphone mute function Line status indicators Electronic hold key Full-length faceplate for customization Data port on line 2 HAC handset volume control Electronic ringer with HI/LOW volume adjustment Durable, matte-finished plastic Desk/wall mountable with optional bracket Compact, low-profile design Available with message waiting options Five-year, "no hassle" warranty