The Panasonic KX-T7731 telephone has 12 lighted buttons and 12 non-lighted feature buttons. It features a 1 line backlit LCD display with a backlit key pad. This telephone is for Panasonic analog and digital phone systems. It comes in two colors, white and black and is a hands free speaker telephone
The KX-T7700 series includes 4 telephone models and one DSS console, all available in white and charcoal/black, providing numerous options to suit each individuals needs and budget. The KX-T7720, KX-T7731, KX-T7736, KX-T7740 and KX-T7750 are all designed for use with the Panasonic Advanced Hybrid Telephone Systems (KX-TA824).