ESI 5000-0500 Communications 48 Key H DFP Backlit Display Speakerphone (Charcoal/Refurbished)Key Features: 48 Key H DFP BL Speakerphone is specifically designed for users who are very active The ESI 48 Key Phone has a large display with backlight and plenty of programmable feature keys that will help you gain maximum productivity If you ever need more programmable keys, the ESI 48 Key Phone is easy to connect with up to two optional Expansion Consoles, each of which gives you an additional 60 programmable feature keys The ESI 48 Key H DFP BL