I have used these in a variety of applications includingin car ipodgalaxy s5galaxy s7 to auxinlaptop line out to 808 canz bluetooth speakerlaptop line outipodgalaxy s5galaxy s7 to line in on pro sound mixerin each application the cable produced clear sound with little to no noise

The connections have been tight and has not loosen with the frequent plugging and unplugging and swinging about

The cables are well built durable and more than useful