4011 D7 Expansion Mod D715, D725, D765

- D7 Expansion Module in Black
- Supports all 700 series telephones with USB ports
- High-resolution graphical display with backlight
- 18 freely programmable multicolor LED function keys
- Dual-angle foot stand: 46° and 28°
- Fully configurable via host phone
- 18 highly configurable self-labelling LED keys
- High-resolution black & white display with backlight
- Daisy chain up to 3 modules
- Plug and play
- Power supplied by phone via USB port for first D7 module