New electronic components (chip components, hybrid integrated circuits), mobile communication systems (including GSM, CDMA, DCS1800, DECT, IMT2000, etc.) cell phones, cell phone semi-finished products, digital audio and video coding and decoding equipment R & D, production, assembly and sales. Production and sales of cell phone shells and keys. Development and manufacture of cellular phone equipment for the third and subsequent generations of mobile communication systems. R&D, production, assembly and sales of consumer electronic products (notebook computers, Bluetooth, GPS, mobile digital TVs, portable multimedia players, mini projectors, digital photo frames, head-mounted displays), chargers, and cell phone Lens (windows). Manufacture of electronic computers and external equipment (tablet PCs, POS machines). Medical electronic instruments and equipment (non-invasive monitoring instruments, invasive electrophysiological instruments and innovative electrophysiological instruments), operating room, emergency room, diagnostic and treatment room equipment (insulin pumps, disposable infusion analgesic pumps, chemotherapy pumps) (100% of the above products are sold externally), the R&D, production, and sales of thermometers and blood pressure monitors. Design, development, sales and operation and maintenance services of application software (medical device application, Internet of Things application, enterprise management class, manufacturing management class). Product sales in domestic and international markets.