Our products are divided into hardware, software and clothing. In terms of hardware, we have a one-year warranty period. At the same time, when we ship, every hardware will be strictly tested to ensure smooth use. At the same time, our hardware has passed the test items of UNITED NATIONS “Recommendations on the TRANSPORT OF DANGEROUS GOODS”Manual of Tests and Criteria, ST/SG/AC.10/11/Rev.6 Amend.1 38.3, including Altitude simulation, Thermal test, Vibration, Shock, External short circuit, Crush, Overcharge, Forced discharge. In the clothing part, we will check the power on performance of each garment when leaving the factory to ensure the smooth use.