Cobo Vault, which will retail for $479, meets the MIL-STD-810G U.S. military standard for equipment, Cobo’s head of hardware Lixin Liu said in an email, adding that it was built with proprietary firmware created especially for the device, a bank-grade encryption chip and military-grade aluminum.

https://techcrunch.com/2018/10/17/cryptocurrency-wallet-startup-cobo-raises-13m-series-a-to-enter-the-u-s-and-southeast-asia/