xiǎo​líng​tōng

Personal Handy-phone System

小灵通 小靈通 xiǎo​líng​tōng
Personal Handy-phone System
A low-cost mobile communication technology (PHS) used widely in China from 1998 to 2013, branded as "Little Smart"
know-it-all
A person who is well-informed or has a wide range of contacts and information
Little Smarty
The protagonist of a popular children's science fiction series by Ye Yonglie, whose name became synonymous with being well-informed