The Hotline Telephone is a vintage rotary phone with a sleek, black metal body and a polished finish, exuding a mysterious aura. Its design features a circular dial with glowing red numbers that emit a faint pulsating light, set against a dark, smooth surface. The handset is slightly weathered, with visible scratches and a coiled cord that appears both old and otherworldly, hinting at its supernatural connection within the game's universe.