Novak Djokovic uses a mobile phone to take a selfie. Selfie stick. 喬科維奇使用手機自拍, 自拍棒

Novak Djokovic of Serbia uses a mobile phone to take a selfie with spectators after winning the first round men's singles match against Simone Bolelli of Italy in the China Open tennis tournament at the National Tennis Stadium in Beijing, Tuesday, Oct. 6, 2015. (AP Photo/Andy Wong)
Photos of the day - October 6, 2015
http://news.yahoo.com/photos/photos-of-the-day-october-6-2015-slideshow/photos-of-the-day-october-6-2015-photo-1444157122416.html
Selfie stick - Wikipedia, the free encyclopedia
自拍杆，也被稱作自拍棒或自拍神器，