By mounting an RCA shorting plug on an open RCA input terminal and preventing noise mixture and mechanical vibrations, the audio unit provides stabilized operation and clean smooth signal transmission.

Item Value
Material and Finish Solid brass carved, 24 gold plating
Dimensions and Weight Shorting plug: 28.5 x 12mm (length x diameter), 12.5 g/piece, 160 g/set (8 pieces, box included)