ASTROTEC AM850 MK2 In-Ear Earphone

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Regular price $169.00 USD
Sale price $169.00 USD Regular price
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Upgraded 10mm dynamic driver with Japanese LCP Diaphragm.
High-strength aviation-grade aluminum alloy cavities.
Optimised Magnetic Circuit.
High-precision 5-axis CNC machined shells.
Premium all-metal design from Astrotec.
Interchangeable tuning nozzles.
High-quality OFC Silver-Plated cable.
Standard MMCX connectors.
Customised Leather carry case.

Astrotec AM850 MK2, a successor to the famous AM850 single dynamic driver IEMs is finally launched. Like the original AM850 set, the latest AM850 MK2 also adopts a single dynamic driver configuration. Astrotec has featured an upgraded 10mm dynamic driver on the AM850 MK2 that uses a 2nd generation LCP(Liquid Crystal Polymer) Diaphragm coil. The pair packs a wonderful performance with outstanding clarity and details!!

Powerful Sound With New Dynamic Driver:
For the latest AM850 MK2, Astrotec has designed a new 10mm dynamic driver unit. They have equipped the set with this single dynamic driver configuration. This new DD unit adopts a 2nd Gen LCP(Liquid Crystal Polymer) diaphragm from Japan. LCP Diaphragms are lightweight and rigid, they offer tremendous performance by depressing unnecessary vibrations ensuring we get a clean and clear sound performance. AM850 MK2 delivers a remarkable performance with a powerful lower end, wider stage, and clean treble performance.

Interchangeable Tuning Nozzles:
Astrotec AM850 MK2 features swappable tuning nozzles. The nozzles can be replaced with three sets included in the retail package. Each set has got its own designed mouth filter that affects the output. Grey nozzles are for enhancing bass response, black is a neutral set of nozzles, and the Gold ones are there for treble enhancement. Users can adjust the output signal a bit with the help of these tuning nozzles.

Exclusive Build With Aviation-Grade Aluminum Alloy Cavities:
The ear shells in AM850 MK2 are crafted using a high-precision CNC machining process. The cavities here are made up of high-quality aerospace-grade aluminum alloy material. They are lightweight and have got an ergonomic shape ensuring a comfortable wearing experience for the users.

High-Purity Cable With MMCX Connectors:
Astrotec AM850 MK2 has got a high-quality silver-plated OFC cable with MMCX connectors and a 3.5mm termination plug. The 3.5mm single-ended termination allows the users to use the AM850 MK2 straight with their smartphones. The high-purity core material of the cable provides smooth signal transmission with low signal loss during transmission.













Shipping Fees

Worldwide Free Shipping on SHENZHENAUDIO, Please allow 1-3 business days for conduct Quality Control in order to ensure the products quality.

If a customer would like the order reshipped, they’ll be charged a reshipment fee. Customers may also be subject to a restocking fee of up to 20 percent of the product cost.

Which Couriers To Use?

Given the amount of shipping partners we work with and the vast coverage area we serve, there are likely regions with much longer transit times than others. If you have any feedback, suggestions, or problems with the courier of your shipment, please feel free to submit a support ticket via the "Contact Us" button below.

Our goal is to provide our customers with the best shipping experience possible at a reasonable cost. This is why we constantly negotiate with existing shipping partners for lower rates and actively test new couriers for potential opportunities.

PO boxes or APO/FPO

The ability to ship to PO boxes or an APO/FPO address depends on the item's weight. If an item weighs more than 9 pounds, we won’t be able to ship to these addresses because of our current courier agreements.

To determine if your order is eligible for shipment to PO boxes or an APO/FPO address, please contact SHENZHENAUDIO Support.

Estimated Delivery Time

For customers in the continental United States:
5 to 14 business days from the date of shipping

For customers in Hawaii and Puerto Rico:
2 to 4 weeks from the date of shipping
International customers can expect longer shipping times, depending on the country in which they live:

Canada: 1 to 3 weeks from the date of shipping
Australia, New Zealand, Germany, France, and the UK: 2 to 4 weeks from the date of shipping
Other countries not listed above: 3 to 6 weeks from the date of shipping

Please keep in mind that these are rough estimates and shipments can be delayed due to unforeseen circumstances, like postal strikes or severe weather.

If, for some reason, you don’t receive your order within the estimated time frame provided above and suspect that it might be lost in transit, please submit a support ticket from your transactions page and we can look into the order with the courier. Lost-in-transit requests must be submitted to SHENZHENAUDIO Support within 4 months of the date of shipping or before the courier archives the tracking information.

Easy 30-Day Return Policy

If you are dissatisfied with your purchase for any reason, you may return it to SHENZHENAUDIO within 30 days of the received date, subject to the conditions and exclusions below.

Eligibility Conditions

Please read conditions below. If all conditions are not met, SHENZHENAUDIO reserves the right to refuse the return. All returned items must be in new condition, in their original unaltered box (including an intact UPC code) and must include all packing material, blank warranty cards, manuals and accessories. SHENZHENAUDIO can only refund the original purchase price. Shipping and handling fees are nonrefundable.

Defective or Damaged Items

Defective items may be repaired, exchanged or refunded at our discretion for the same model or manufacturer's equivalent model.


Depending on where you live, the time it may take for your exchanged product to reach you, may vary. Please allow 3-5 business days for mail-in exchanges to be processed.

Refunds & Credits

Once we receive and inspect your item(s), we will credit your account. Please allow 5-7 days for a credit to appear on your account. In most cases, we will issue your refund in the same way you made the original purchase. Please note: we can only refund the original purchase price. Shipping and handling fees are nonrefundable.

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.


To return your product, you should mail your product to: 4F 405, Building F, No.2 Shangxue Science and Technology North, Bantian Street, Longgang Dist, ShenZhen, 518129 Guangdong, China

If you’ve done all of this and you still have not received your refund yet, please contact us at

Impedance: 32Ω.
Frequency response range: 5Hz-35kHz.
Sensitivity: 106dB/mW.
Input Power: 1mW.
Max input: 3mW.
Termination: 3.5mm Single-ended.