Dive into a world of pure, unadulterated sound with the HarmonicDyne Poseidon Open-Back Headphones. Engineered for audiophiles and music enthusiasts alike, these headphones deliver high-resolution audio that transcends the ordinary. From the deepest bass to the most subtle notes, every detail is rendered with crystal-clear precision, thanks to our custom 50mm nickel diaphragm dynamic drivers.
The Poseidon stands out with its pure nickel diaphragm drivers, offering a sound conductivity that surpasses traditional materials like beryllium. This results in a sound profile that boasts four times the density and double the tensile strength, ensuring clarity, reduced distortion in the low frequencies, and an unparalleled listening experience. The open-back design complements this by creating an expansive soundstage and natural acoustics, placing you at the center of your music.
The Poseidon is perfect for both critical listening sessions and casual enjoyment. Its high-resolution audio performance makes it ideal for audiophiles seeking to dissect every nuance of their favorite tracks, while its comfortable build and beautiful design make it a pleasure to wear during long listening sessions. Whether you’re in the studio, at home, or on the go, Poseidon elevates your audio experience.
It’s not just the innovative use of pure nickel in the drivers or the meticulously tuned open-back design; it’s the commitment to audio perfection. Poseidon represents a harmonious blend of technology, artistry, and passion for sound. Every component, from the ergonomic ear pads to the durable maple housing, is designed with the listener’s experience in mind.
Don’t settle for ordinary. Choose HarmonicDyne Poseidon and experience your music in all its high-resolution glory. Elevate your audio journey today.
We are proud to offer international shipping services that currently operate in over 200 countries and islands worldwide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.
Packages shipped from our US warehouse are shipped through USPS.
Yes. We provide shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.
We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.
Shipping time varies by location. These are our estimates:
| Location | *Estimated Delivery Time |
| United States | 7 business days total |
| Canada, Europe | 10-30 business days |
| Australia, New Zealand | 10-30 business days |
| Central & South America | 15-30 business days |
| Asia | 10-20 business days |
| Africa | 15-45 business days |
Yes, you will receive an email once your order ships that contains your tracking information. If you haven't received tracking info within 5 days, please contact us.
For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.
For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.
If you have any other questions, please contact us and we will do our best to help you out.
All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.
You have 30 days from the date of delivery to return eligible items for a refund or exchange.
To be eligible for a return, items must:
You can request a refund if:
We do not issue refunds if:
Contact us at support@selectchoicemart.com with your order number to receive a Return Authorization (RA) number and return instructions. Do not send items back without authorization.
Return Shipping:
Once we receive and approve your return, refunds are processed within 3-5 business days. Please allow 5-10 business days for the refund to appear in your account.
We offer exchanges for defective or damaged items only. For size or color changes, we recommend returning the original item for a refund and placing a new order. Contact us first before sending any items back.
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