A staff member presents a Samsung 4G mobile phone at Xizhimen business hall of China Mobile in Beijing, Nov. 6, 2013. The Beijing company of China Mobile officially released its 4G mobile phones on Wednesday. (Xinhua/Wang Jingsheng)

Customers experience 4G mobile phones at Xizhimen business hall of China Mobile in Beijing, Nov. 6, 2013. The Beijing company of China Mobile officially released its 4G mobile phones on Wednesday. (Xinhua/Wang Jingsheng)

A staff member registers a 4G mobile phone at Xizhimen business hall of China Mobile in Beijing, Nov. 6, 2013. The Beijing company of China Mobile officially released its 4G mobile phones on Wednesday. (Xinhua/Wang Jingsheng)

Photo taken on Nov. 6, 2013 shows an advertisement of 4G mobile phone at Xizhimen business hall of China Mobile in Beijing. The Beijing company of China Mobile officially released its 4G mobile phones on Wednesday. (Xinhua/Wang Jingsheng)

A staff member introduces the service of 4G mobile network to a customer at Xizhimen business hall of China Mobile in Beijing, Nov. 6, 2013. The Beijing company of China Mobile officially released its 4G mobile phones on Wednesday. (Xinhua/Wang Jingsheng) 

 

Customers experience 4G mobile phones at Xizhimen business hall of China Mobile in Beijing, Nov. 6, 2013. The Beijing company of China Mobile officially released its 4G mobile phones on Wednesday. (Xinhua/Wang Jingsheng)