All our products possess independent design patents, software patents, and some utility model patents, and have been certified by authoritative certifications such as CE, RoHS from the European Union, FDA from the United States, and EPR from Germany. Before each device is shipped, it undergoes a full range of testing, including high/low temperature, 1000G shock resistance, dark room, aging, misuse, water resistance, etc. With 100% full inspection for all products, we ensure that each device is shipped in perfect condition, resulting in a remarkably low global maintenance rate of 0.49% for Sytong!