Lonely elderly people also play LED projection. There are many ways to express filial piety to parents. As long as you put your heart into it, the most thoughtful gift you buy for your parents will be a comfort to the elderly. Today, we recommend to netizens to send home theater systems to the elderly, reducing their idle time at home so that they won't feel lonely. The traditional Chinese festivals, Spring Festival and Lantern Festival, have passed one after another. Everyone has returned to their respective positions and started working for the year. The parents at home, from looking forward to reunion, and then to the sudden emptiness now, find it hard to get used to the loneliness of empty nest. After the CES2012 TV development trend: super large, super thin, super smart, as children, we should think more about the elderly in our spare time from work, and give them thoughtful gifts to reduce their sense of loneliness. Build an entertainment home theater with a projector. The elderly can watch big screen TV and movies at home. For those who know how to use the Internet, they can also have large-screen video chats with their children. Sending a projector home will add entertainment space for the elderly.