1. With high strength ABS shell
2. Desktop or wall mounted
3. Show 3 group numbers and 2-digit number.
4. Show different service types with red dot
5. It can work with 99pcs call buttons in max
6. It can save 63 calling info in turn and apply in basic service places.
7. Dimension: 195*135*30mm
8. Color: Black
9. Work current: DC5V