OpenAudio Siren
1 DD + 2BA Hybrid IEM
- Advanced Dynamic Driver with Independent Metal Chamber
- 10mm PU Soft Suspension Beryllium-Coated Diaphragm Dynamic Driver
- Brand-new Flowing Sand Texture Design
- Artful and Scientific Tuning for Perfect Harmony
- 4-core Twisted OCC Interchangeable Plug Cable
- Ergonomic Design and Enhanced Comfort
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Estimated Delivery:Oct 18 - Oct 22
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Free Standard Shipping & Returns On all orders. Check if your country applies.

OpenAudio Siren
Siren: A Symphony of Craftsmanship and Sound
As night falls, the Siren perches on moonlit rocks, her melodious voice soothing the sea, smoothing away worries and restoring tranquility. OA’s "Siren" earphones embody this calming essence with their handcrafted flowing sand design, inspired by the sea’s serenity. The delicate fishtail patterns, high-transparency imported resin, and fresh Tiffany Blue hue capture the beauty of water in motion. Like droplets reflecting the moonlight, the transparent casing enhances brightness and vibrancy. With crystal-clear sound and exquisite craftsmanship, the "Siren" brings a peaceful ocean to your ears in a noisy world.
Hybrid Driver Configuration for Superior Sound
With extensive experience in hybrid earphone design, we have crafted the "Siren" to fully maximize the unique characteristics of each driver. The "Siren" features a combination of 1 dynamic driver and 2 custom-tuned balanced armature drivers per side, supported by a 2-channel 3-way crossover system and a flexible low-frequency duct. This precise configuration ensures smooth transitions across low, mid, and high frequencies, allowing each range to shine. The BA drivers, specifically tuned for mid and high frequencies, deliver rich tones, enhanced clarity, and seamless phase alignment for a harmonious and natural listening experience.
All-New Dynamic Driver with Metal Chamber Design
The "Siren" is equipped with the same 2nd-Gen 10MM PU soft suspension long-stroke beryllium-coated diaphragm dynamic driver found in the "MIZAR", offering enhanced magnetic flux for superior kinetic energy efficiency. The beryllium coating strengthens the driver for more detailed, accurate sound reproduction, providing a richer and more nuanced listening experience. The flexible low-frequency duct further enhances bass depth and volume. Additionally, an independent front and rear metal chamber maximizes ample pneumatic volume and controls linear diaphragm response, effectively reducing resonances to deliver exceptional low-frequency performance.
High-Quality OCC Interchangeable Plug Cable
The "Siren" features a premium 0.78mm OCC cable with a shielding layer for added durability. This cable supports easy switching between 3.5mm single-ended and 4.4mm balanced plugs, with precise tuning and specially formulated solder to minimize any impact on sound quality. The standard 0.78mm 2-pin connectors are stable, reliable, and highly compatible for easy replacement. Additionally, the cable’s outer sheath is carefully color-matched to complement the earphone’s design perfectly.
Harmonizing Science and Art in Tuning
When tuning the "Siren," we referred to the Harman IE (2019) target curve but went beyond simply replicating it. Instead, we took a multi-dimensional approach, considering real-world listening impressions, user preferences, market trends, and the characteristics of popular music. While frequency curves and data provide a foundation, the final sound quality was refined through extensive listening tests, blending science and artistry. The result is a passionate, invigorating sound with a naturally expansive soundstage, full and sweet vocals, and powerful, resonant bass. Whether in dynamic music passages or subtle vocal details, the "Siren" offers a seamless, immersive experience—ideal for both professional monitoring and personal enjoyment.
Ergonomic Design and Enhanced Comfort
The "Siren" combines years of custom IEM expertise with a semi-custom shell design for lasting comfort, whether for daily use or extended listening sessions. It comes with two ear tip options, including the new OA05 liquid silicone tips, made from premium, skin-friendly, food-grade material, ensuring a hypoallergenic experience for users. These tips enhance passive noise isolation and improve vocal clarity, delivering a fuller, richer sound and a smoother, more immersive soundstage.
Free Standard Shipping
We Offer FREE Standard Shipping on all orders to Most of the World*
1 Year Warranty
Your Headphones, IEM's, AMPs and DACs, are covered by a warranty against factory defects.
Authentic Products
HiFiXAudio is an official distributor of the brands we carry. All products are genuine.
FAQ's
How long does it take to process an order?
For in-stock products, your order is expected to be shipped within 3 working days. Customized items and pre-orders take a longer time (do check in with our staff for more information). On normal non-sale days, once your parcel is shipped:
- For Standard Shipping, it takes about 2-3 weeks for items to be delivered after it is shipped. For some countries, it might take up to 1-2 months, depending on your country and its custom procedure. The duration for transit is beyond our control. Mechlands does not arrange refunds for such cases. Please consider an upgrade to DHL Express or keep the waiting time in mind.
- For Express Shipping, it takes about 3-10 days for items to be delivered after it is shipped.
Note:
Shipping methods and period might be affected and changed due to festive seasons, pandemic circumstances or other unforeseen circumstances.
What kind of shipping do you offer?
We have two shipping methods - Standard Shipping and Express Shipping.
Standard Shipping is free for most countries/areas.
Express Shipping via DHL Express or FedEx is 10-40USD (excluding tax) depending on your country. If your order is over 500USD, DHL Express Shipping is free*.
*KiiBOOM keyboards are not eligible for free shipping.
Shipping fees exclude import taxes or processing fees that may be applicable for your country. Mechlands is not responsible for such fees. Should you refuse to pay the tax/customs fees, shipping fees will still be deducted from the amount paid for the two-way freight charges. The cost of the freight charges may be more than the amount reflected on your order due to tax and other miscellaneous fees.
Standard Shipping via YunExpress is a tax-inclusive option for some countries. However, Mechlands will not be responsible for additional administrative or handling fees charged by your local courier company or customs. Please kindly check this with your local customs.
For certain remote areas, there may be additional charges via Express Shipping. We will contact you if there is a need to make additional payments. Should you have any other queries regarding shipments, please contact us before placing an order.
Who does pay for the import tax/custom fees?
Customers have to bear any form of custom/import/processing fees that are applicable for your parcel.
If the custom fees and the delivery of the parcel are rejected by the recipient, the shipping cost still needs to be paid. Mechlands only arranges the refund of the order amount after deducting the shipping cost incurred.
Which countries do you ship to?
We are generally able to ship to most countries via Express Shipping, and many countries via Standard Shipping. Shipping methods may alter due to different situations. After proceeding to Checkout, the available shipping method(s) and cost will be stated before the payment page.
Note:
Note: For countries and areas of Africa, Alaska, Argentina, Canada, Hawaii, Kuwait, Mauritius, Montenegro and Sri Lanka, to name a few, we can only do Express Shipping. This may be subjected to changes due to unpredictable events such as pandemic, war, and etc.
How do I cancel order?
Cancellation or/and modification of orders can only be done manually via our staff, provided that our Warehouse Team has not processed your order.
As our Support Team may not be available during non-working days and weekends, please place your order wisely as support cannot be guaranteed for such requests.
Should you really need to cancel or/and modify your order after purchase, please contact us via our support email (support@mechlands.com) or website chat. We will help you with the changes if that could be done.
For other queries, the fastest way to contact us is via our website or Discord
Do I get tracking details for my order?
After placing an order, you will receive the order confirmation email. After your order is shipped, you will also receive a tracking email. You can track your order via the tracking number online. Should you not have received the emails or face any difficulties tracking your order, please kindly contact us for support.
What if i dislike the product once it arrives?
On the ground of disliking a product, you may return any non-customized and non-sales product that is sealed, within the 15 days upon receiving it. To be eligible for a return, your item must be unused and in the same condition that you received it. It also must be in the original packaging. Customized and sales products, accessories, or spare parts are excluded from the 15-day return policy. The shipping fee, handling fees, or any form of tax caused by return will NOT be refunded.
My product came with some kind of factory issue
For factory defective items within the first 30 days upon delivery, you would need to provide a solid proof. All customers are strongly advised to take an unboxing video of their parcel and packaging. If the item is defective due to manufacturing issues instead of unguided manual modifying/disassembling, Epomaker will provide a shipping label and reship the replacement unit or refund to you after receiving the return parcel.
Who applies to your free 15/30 Days Return Policy program?
*Our 15-day & 30-day warranty applies only to the following countries Canada, United States, Netherlands, Poland, United Kingdom, Czech Republic, Australia, Brazil, Saudi Arabia, Spain, Ukraine, France, Mexico, Italy, Chile, South Korea, Japan, Switzerland, United Arab Emirates, Portugal, Israel, Russia, Belgium and Germany. Customers in other countries may incur additional fees for warranty service.