Sonim Technologies provides ultra-rugged smartphone solutions for people who work in extreme, hazardous and isolated environments. Sonim devices work in rough, strenuous industries where other products may fail. Designed for mission critical environments, Sonim cellular devices provide waterproofing to IP68, a dedicated PTT button, extra loud audio, glove touch screen and a very high capacity battery. In addition, Sonim smartphones come with an industry leading, 3 year comprehensive warranty. Supporting most leading PTT services, Sonim also offers an extensive range of industrial grade accessories, including headsets and remote speaker microphones.