90 degree Right-Angle connection (one side) for ease of installation 2-Channel RCA, perfect for stacking, strapping or connecting amps Advanced construction minimizes noise and interference Engineered high tolerance compact machined metal end Great sound transfer High quality Audio interconnection cable. It is gold-plated. Triple shielded and aluminum twisted design to eliminate noise from radiating into the system. It includes drain wire that is extremely convenient for grounding RCAs to head unit or ground, which often solves problems with engine noise or alternator whine. The wire can also be used as the remote turn on wire for your amp, which means 1 less wire to run through your vehicle. Drain wire come with spade/fork connectors on each end. Space saving right angle male RCA plugs for plugging into back of head unit. Outstanding noise rejection, accuracy and frequency response all contribute to excellent.