Made of flexible carbon nylon + aluminum metal shell material which makes the audio cable stronger yet flexible and easily withstands daily heavy use 100% durable for use. An extra layer of protection has been added to the AUX cord to improve durability and reduce wear. Plug and play allows you to use the simplest way to enjoy wonderful music anywhere. (Note: The actual maximum audio output depends on the headphone device.) High-fidelity sound quality. Ensures reliability and reduces signal loss and noise The braided cable has a good texture which makes it beautiful and durable.