About product and suppliers:
            203 ear plugs impedance products are offered for sale by suppliers on Alibaba.com, of which earphone & headphone accounts for 2%. 

A wide variety of ear plugs impedance options are available to you, such as in-ear. You can also choose from mobile phone ear plugs impedance, as well as from microphone ear plugs impedance

There are 5 suppliers who sells ear plugs impedance on Alibaba.com, mainly located in Asia. The top countries of supplier is China, from which the percentage of ear plugs impedance supply is 100% respectively.