Dear Sir or Madam:My name is Alin Harbuz and I am in charge of overseas sales at Tianfang (HiTechouse). Please allow me to briefly introduce our company.We are a professional manufacturer that has dedicates over 12 years to producing smart locks. During this time, we have produced over 320000 locks with ISO 9001 certification.Also, we are honoured to be one of Apple’s suppliers for the HomeKit project.One of the consequences of having MFI (made for iPhone/iPad) certificate is that we are allowed to use the chips produced by Avnet for Apple. Thus, our locks can work with iPhone, iPad, iWatch and even Apple TV by using the Siri assistant system.Moreover, HTH-B3 fingerprint locks called ‘Matrix’ can be user also by Google Assistant and Amazon Alexa , which will give Android users a pleasant experience as well.We are working hard also on Windows Cortana. Our customers will be able to control their locks by Windows in the 4th season of 2018.