What's wrong with oppo r9plus without infrared remote control?

This is the manufacturer's design.

The function of installing mobile phones by manufacturers is selected according to the cost and positioning of mobile phones, which is independent of the wishes of consumers and is a company behavior. If you really need the infrared remote control function, you can choose the mobile phone model with this function.

1, remote control technology, also known as remote control technology, refers to the realization of remote control of the controlled object, which is widely used in industrial control, aerospace, home appliances and other fields.

2. Infrared remote control is a wireless non-contact control technology, which has obvious advantages such as strong anti-interference ability, reliable information transmission, low power consumption, low cost and easy realization. It is widely used by many electronic devices, especially household appliances, and is increasingly used in computers and mobile phone systems.

3. Infrared remote controllers of similar products can have the same remote control frequency or code, and there will be no crosstalk of remote control signals. This provides great convenience for the mass production and popularization of infrared remote control in household appliances. Because infrared ray is invisible light, it has little impact on the environment, and the fluctuation wave of infrared ray is far less than the wavelength of radio wave, so infrared remote control will not affect other household appliances or adjacent radio equipment.