The originals. Extremely impact resistant, completely air-and waterproof (guaranteed submersible to 1 meter depth). Temperature resistant to -25 ° C. Whether the laptop or the professional equipment for celluloid and other hunters. Here you get everything (almost) pure and in most cases, safe and without prejudice to back out. In their professional and private use tested around the globe. Security teams, firefighters and police swear by them. Special computer speakers for laptop and navigation systems.