A basic stereo system (2.0) consists of two speakers (one on the left and one on the left), usually without any processing of the sound, and directly delivering the original sound. A safe choice f...
Due to Chinese goverment's policy of "Dual Control of Energy Consumption", many factories have been forced to "run for 2 days and stop 5 days". (Some factories even run for 7 days and stop 7 days,...