Shenzhen xinkeying digital co., limited, also known as DTNO.1, is an innovative high-tech company which integrates R&D, production and sales. DTNO.1 aims to bring design to life and dedicates to make healthier, more fashionable and more refined life by providing well designed, fine quality, easy-to-operate smart wearable devices to customers worldwide. Its self-owned brand DTNO.1 is becoming more and more popular among customers and gradually making influence on the international market.