We found on the official website that Manya smart lock is Maiyu Intelligent Technology (Shanghai) Co., Ltd., headquartered in Shanghai, and currently has R & D centers in Hangzhou and Shenzhen respectively.
Manya, a smart home brand from the United States, was established on 2016-06-21 with a registered capital of 12 million. The company is based on current home life, long and short rent apartments, hotels and other services. For where, the answer must be made in China, but the technology may be the US headquarters technology.