Panasonic KX-T7440

Features: 66 DSS/BLF Keys, Max 4 per KX-TD1232/816, 8 for double 1232 system.

Compatible with KX-TD308, KX-TD308-1, KX-TD816-3, KX-TD816-4, KX-TD816-6, KX-TD1232-3, KX-TD1232-4, KX-TD1232-5, KX-TD1232-6, and KX-TD1232-7. Use with PAN-KX-TD super hybrid phone systems.