Buy with Confidence: With Monoprice's Lifetime Warranty on all Cables, you can rest assured we stand behind our products and our customers.Most home audio systems with an amplifier or receiver use RCA jacks for audio inputsThis cable is ideal for connecting the output of your mp3 player or phone to your home audio systemThe cable is made of heavy-duty coaxial cable for each conductorThe conductors are 22AWG and each conductor is shield to prevent EMI or RFI interference from entering your audio system.