With the jack to RCA coupling, two audio devices can be connected simultaneously via one socket. Thanks to multiple signal shielding, pure materials and precise workmanship, the sound-persuasive multiple audio connection is easy to set up - and you can enjoy music in two rooms simultaneously. Y-cinch coupling for connection to hi-fi systems/amplifiers. Pure copper conductors and 2-fold shielding for clear signal quality. 24-carat gold-plated contacts for minimal transmission resistance.