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Symphonym is the finest cabling solution we have to offer

Explore the world of Custom In-Ear Monitor

Premier sound with an instant gratification

Learn about our awesome, no question asked flat rate repair policy

Learn about how we ship and how you can return a product

Go through our FAQ to have your questions answered

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Frequently Asked Questions


We usually reply very fast, within 2 working days. If you don’t get a reply,

a). Check your spam mail box.

b). Check if the date falls on a public holiday, we will reply the next working day.

c). If your questions don't fall under the FAQs, kindly write in again. Sometimes we may reply slower during peak seasons, such as Black Friday, Christmas, New Year, etc.

Please look up our CIEM Order Procedure page

Due to high workload, we sincerely apologize that we could not actively reach out to you for package delivery confirmation. Thus it is very important for you to send in the package via a shipping method with tracking number. You could track your package, and once it is delivered, you could write to us for confirmation. We are happy to provide confirmation upon receiving your request. 

If you need to modify your order, please contact us within 24 hour of placing it. We'll do our best to help with your order, but if it has been shipped out already, it can not be modified.

Warranty & Repairs

Contact us at support@null-audio.com. In the email please state the following: 

your name (used when placing the order) your email address (used when placing the order) your order number, starting with NAS7XXXX, or NAS75-XXXX, usually stated in the subject line when you received the order invoice email during order placement.  the product issue you have encountered, as specific as possible. Attaching a few photos describing the issue will be excellent. 

Using a different name, email address, or without quoting your order number may greatly prolong our responding time. Make sure you have provided ALL the above mentioned details. 

All of our products carry one year warranty period unless otherwise specified. Refer to the specific product page for details.

Refer to here for the general warranty coverage. Contact us and we will assess the condition case-by-case. 

All repairs will be completed within 4 weeks after we receive them.

Yes, we offer flat rate repair for products less than 3 years old, otherwise contact us for detailed discussion and repair cost quotation.

A: No.

Yes we can reshell and repair most typical damages found on in-ear monitors, contact us with your situation and we will be glad to help.

Shipping & Returns

Quite a lot of our products (for example our cables and CIEMs) are build-to-order items, that means we don’t have ready stock for the item, and will only start building it once we have received your order. Sometimes the lead-time (from the order receiving date, to order shipment date) could be long, such as a few weeks when the ordering volume is high. For ready-stock items, such as IEMs (exclude CIEMs made into universal shapes), accessories, etc., we generally ship your order out in 2-3 working days. 

The lead-time is stated on the product page, with a dedicated paragraph.  

We update the lead-time, especially for our cables, on a weekly basis. It will be changed according to the current accumulated order volume. 

Non-CIEM order can be cancelled with an immediate refund if the product has not been shipped at the time of cancellation request.

Once the product is shipped, please refer to our Return Policy.

Yes all of our product with the exception of CIEM can be returned within 14 days upon delivery, please refer to our Return Policy.

We generally use Singpost (for registered mail) and FedEx. Occasionally we use SpeedPost, DHL or EMS for areas where FedEx doesn’t serve. 

The shipping charge will appear before checkout, once you have keyed in your delivery address.

Once the package is shipped, the shipping time depends on the shipping method you have selected. For detailed information, please refer to our shipping policy here.

Yes, a tracking number will be sent to you via email once the package is shipped. 

For registered mail, it usually takes Singpost 2 working days to update the tracking status. For FedEx, the tracking status is immediately shown once you receive the tracking number. 

Once the package has left Singapore, it is handed over to your country’s national post. You can check on their websites for status updated. For certain countries, if Singpost has a collaboration for sharing the status, Singpost website may also show the status. 

For certain countries, the tracking status is not shown online, for example Canada. This is due to their national security reason.

Shipping time may vary according to different countries, as well as timing. For example year-end may have a prolonged shipping time due to holiday season. Contact us if you haven’t received it after 18 working days from the posting date. 

Please do note that, custom and tax are charged by the respective country of the recipient, thus we are NOT liable for any such charge. We are happy to provide assistance for purchase confirmation, purchase invoice request, as well as value declaration.