Null Audio

AAW W500 UIEM/CIEM Demo Sale


We occasionally put used CIEM demos in universal fit here for sale, after updating product line ups. Watch this space for sales!


AAW W500 2017 and 2018 version.

All demos are in pristine condition or refurbished by manufacturer. We have one or two pairs of each lot, if you are unable to check out after adding to cart, it means the selected lot is already sold.


Demos are very popular and sales usually finished fast. Grab one when it is available!

System may get overloaded during demo sale. Secure a pair for you first. We will get back to you to sort out details shortly.

Cable Upgrade

Each demo comes with Ethos Plus cable (no mic) as default. Upgrade cables are available from drop down list. Various amount to be added depending on cable selected.


Demo units come with 6-month standard warranty. Upgrade cable selected will be covered under regular 1-year warranty.

All demo sales are final, no return or exchange is accepted.


Demo pair, stock cable (by default), silicon tips (S, M, L), carrying pouch

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