Free shipping on All Orders. No Minimum Purchase
Free standard shipping for all order
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
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【Four Hybrid Drivers】The BASN Metalen in ear monitor equips 2 balanced armature drivers and 2 dynamic drivers per earbud, the iem headphone adds more definition, shows more details, enhanced bass response, and sound frequencies are balanced and original
【Excellent Sound Isolation】This basn in ear monitor is a professional sound isolation headphones, it's wired earbuds provide premium performance; Clear and clean sound quality from mids and treble makes this iem earphone great ear monitors for stage and studio
【Metallic CNC Crafted】 The lightweight earbuds are carved with high-quality CNC aluminum alloy material, after the highest strength level of hard oxidation treatment and CNC process including milling, cutting, and reshaping to achieve a finely textured, natural metal finish
【Comfortable Ergonomic Earbuds】This quad driver iem with an elegant design and ergonomic shape that makes it comfortable to wear and cuts down external noises; The silicone and foam eartips enhance the performance of in-ear monitors by providing noise isolation and ensuring a superb fit
【Detachable MMCX Connector】The IEM headphones allow for direct connection to in-ear monitoring systems, and other mobile devices, easily connect to other MMCX cables for further customization; Coming with 2 different cables for audio IEM use and volume control & music playback
General Policy
All BASN products are eligible for a 12-month warranty but are non-refundable. If you are not completely satisfied with your purchase, you may request a replacement within the warranty period, as refunds are not offered.
Custom-Fit Items
Due to the personalized manufacturing process, refunds are not available for custom-fit items purchased through basnaudio.com. Please keep in mind that the shape of your ear canal may change over time due to growth or aging, which may require your custom-fit product to be re-made after 2-3 years from the manufacturing date.
Refit for Custom-Fit Items
If you experience poor fitment with your custom-fit item, we accept refit claims within 30 days of delivery. To initiate the refit process, please reach out to us at basnaudio@outlook.com.
Thank you for your understanding and for choosing BASN.
Order Processing
We strive to process and ship orders within 1-2 business days. For made-to-order products, such as custom-logo earphones, additional time is required for manufacturing. Once shipped, delivery times depend on the chosen shipping method.
Domestic Shipping Options
BASN offers various shipping methods for customers to choose from, depending on speed and tracking needs. Tracking availability depends on the shipping method selected.
International Shipping
We ship globally to most countries, though restrictions may apply to certain products and regions. Our standard international shipping is via USPS First Class International, which does not offer tracking and has a flexible delivery period. Typical delivery time for this service is 2-4 weeks, though times vary by destination and may take longer in some cases.
For a quicker and trackable option, we recommend using FedEx, DHL, or USPS Priority Mail (additional shipping fees apply). Our international shipping methods and estimated delivery times include:
Responsibility and Address Accuracy
For orders shipped by methods without tracking, the package becomes the customer’s responsibility upon shipment. Please ensure your address is accurate in our system to avoid delivery issues.
Customs, Duties, and Taxes
International orders may incur import taxes, customs duties, and fees, which are the recipient's responsibility. BASN cannot predict or control these fees, as they vary widely by country. For specific information, please consult your local customs office.
Expanding Retail Availability
We are actively expanding our retail network globally. If BASN is not currently available in your country, we encourage you to ask your local PRO audio or music instrument stores to carry BASN products.
For further questions about order delivery, please contact us at basnaudio@outlook.com. Thank you for choosing BASN!
BASN offers a diverse range of in-ear monitor (IEM) headphones, each tailored to meet specific audio preferences and professional requirements.
Bsinger Series
Bmaster Series
MMCX Series
Metalen Series
Bmaster5 Series
ASONE Series
MTPro Series
These specifications showcase BASN's commitment to delivering high-quality IEMs tailored to various audio needs, from casual listening to professional monitoring.
Wish it had a longer cord is all.
High quality audio, I use them for pc and Xbox gaming. Directional audio and footsteps come
Through very clearly. Great alternative to over ear headphones
These are great! Clear sound, strong bottom end, great travel case and many extras. Cord length is good (normal) but I generally use an extension to have some room. Comfortable. Buy the warranty because I’ve went through two pairs myself in four years
I was using the TINHIFI T3 Plus and think they are great but these blow them out of the water. Great bass response and wonderful soundstagging.
BASN Metalen 4 Drivers in-Ear Monitors Headphones, Noise Isolating IEMs with Deep Bass, for Musicians Singers Drummers Bassists(Sapphire Blue)
I have lots of IEMs as I am a little bit of a headphone enthusiast. Now I'm not rich but I do have a few nice pieces. Collecting headphones and IEMs can be an expensive rabbit hole, but it doesn't have to be. These IEM's prove that. These are some of the most balanced and capable IEMs I have ever tried. They have a fantastically natural and musical sound signature that works for every style of music. I cannot say that about my other favorites. These have become what I measure other IEMs by. The Metalen has a warm and present mid and low mid which is something many lack. They aren't hyped in the bass they are very natural, however when a song asks for subs these have it to give in abundance and will hit low. The highs are relaxed and not at all fatiguing yet clear and polished. The overall sound signature is very polished and expensive sounding, especially when paired with a good DAC and Amp. The capsules are all CNC metal carved and look and feel very high end. They come with a storage case and both an unbalanced braided stereo cable as well as a mic cable. Also, a 1/4" adapter and a cleaning tool as well as several ear tips in various sizes. I tested these with many amps and DACs and they always came out on top in my collection. I have some I love for classical or jazz and others I like for rock and alternative, and others that are great for electronic, these beat them all at all of it. These are the current king in my collection. I highly recommend these and I am grateful to have them in my collection.
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