KNSP-09 Heavy Duty Analogue TelephoneThe Vingtor Stentofon Heavy Duty Analog Telephone is made for environments that need a telephone which can withstand rough usage and treatment. The telephone is well suited for indoor marine usage due to the thick aluminum casing, the stainless steel materials, the steel cable into the phone from bottom, and the fluorescing keypad. Industrial indoor environments are also suitable. The telephone is easy to use with a full keyboard with large buttons.