For use with audiometers such as Interacoustics, KIND, Steinmeier AUDIOmed. Good performance and stable audio transmission,Resistant to tension and bending, convenience to use. Replacement cable for TDH39 and DD45 headphones with colour-coded 6.3 mm mono jack plugs. The cable can easily be changed using a fine screwdriver. Service Guarantee: We offer 30-day money-back service for any quality issues. Any dissatisfaction with the purchase within that period will be responded with a refund or a replacement. Please don???t hesitate to contact us if you have any question.