LSTN Quality Control

The company has passed the ISO9001/2000 Quality Management System, and received RoHS, CE and other certifications. We are certified awesome! Each product needs to undergo a rigorous inspection such as balanced speakers test, and 100% electro-acoustic test. Each set of LSTN Headphones you get are perfect. We ensure a long product life. If you have any questions regarding our quality control, please contact us at contact@LSTNheadphones.com