Feature●SUPERIOR PERFORMANCE AND COMPATIBILITY:The interface is made of alloy material, not easy to damage, contact well,use for audiometer air conduction testing and screening,this is not bad choice for your friends and families.●HIGH QUALITY :This device is durably made with superior materials and outstanding reliability. Durable design and highly advanced mini micro processor technology makes this device a superior cable and audiometer Headset Cable than others on the market●UNIVERSAL HEARING SCREENING ACCESSORY:Great and practical hearing screening accessory t,universal Audiometer Response Switch, suitable for all types of audiometers,which can help testers to give correct test response●REDUCING BACKGROUND NOISE:High band digital precisely boost the frequencies associated with the human voice, amplify speech while actively reducing background noise.Good performance, stable audio transmission●QUALITY GUARANTEE:Strives to provide excellent services for our customers. 30-day hassle returns. 12 month warranty guarantee.Please be assured and purchase it nowDescription