This is an airline cabin configuration problem. Because the flight time of single-aisle aircraft used in domestic routes is only about 3 hours, there is no need to be equipped with power plugs.
European and American companies developed early, and not all planes have this kind of socket, but many dual-channel planes bought this year have it. These things will only become more and more popular, and the development of civil aviation is also in line with social needs and development.
Extended data
Note that mobile phones without flight mode are still disabled in the air.
Before using PED on open aircraft, airlines need to make clear the available PED types, available and disabled flight phases, PED storage and emergency disposal requirements, available and disabled modes, etc. For the use of T-PED devices such as mobile phones, airlines also need to ensure that the aircraft meets the corresponding design standards.
Only T-PED with low transmission power below 100mW (including Bluetooth, ZigBee and Wi-Fi operating in 2.4GHz band) is allowed. When flying, the cellular mobile communication functions (voice and data) must also be turned off, that is to say, the mobile phone can't turn on the 4G Internet access function and must use the flight mode. Mobile phones without flight mode are still disabled in the air.
The Guide also puts forward some restrictive uses: when the aircraft is in the low-visibility flight stage, or when the aircraft is suspected of being interfered by PED, it should be prohibited to use PED; Moreover, when there is existing electronic interference in the aircraft, and it is suspected that the interference comes from the portable electronic equipment used by the passengers on board, they have the right to request to turn off the equipment.
People's Network-Mobile phones are allowed on the plane, but these things need attention.