CVJ MYTHERA In-Ear Monitors Review
A seven-driver hybrid IEM from CVJ that the page says combines dynamic, balanced armature and planar drivers, with a 9.5mm DLC dynamic driver and a 1000-core Furukawa copper cable. It suits buyers who want a stated driver mix in Black or Gold, at $368.

Our verdict
A seven-driver hybrid IEM for someone who wants a stated driver mix, a 9.5mm DLC dynamic driver and a described 1000-core copper cable in Black or Gold at $368. Look elsewhere if you need the plug or connector type, per-type driver counts or impedance and sensitivity figures, since the listing text gives none of them. The main caveat is that the sound and cable claims are the maker's wording and were not checked.
- Best for
- Someone who wants a seven-driver hybrid IEM with a described copper cable and a choice of two colors.
- Skip if
- You need a plug or connector type, per-type driver counts or impedance stated on the page before you buy.
CVJ describes the MYTHERA as a 7-driver hybrid system combining dynamic, balanced armature and planar drivers, with a custom 9.5mm DLC dynamic driver and a custom micro planar driver named on the page. The shell is CNC-machined aluminum alloy, and the cable is a 1000-core Furukawa copper design made of eight strands of 125 cores each. It is listed at $368 in two colors, Black and Gold.
Options and pricing
There are two color options, Black and Gold, and both are $368, so the choice does not change the price. No crossed-out price is shown. The page gives no plug type or connector type for the cable, and no weight or dimensions, so the options list cannot tell you what plug comes on either color.
How it compares
The Softears Studio4 is the same $368, and the Kiwi Ears x HBB Punch is $381.65 with a Connector option of 3.5mm or 4.4mm. The TANGZU NeZha is $359.10 and its listing text mentions piezoelectric. Against these, the MYTHERA's page lists a seven-driver hybrid with a planar driver, and its options list only color.
Shipping
- Methods and costs. The store's shipping page offers Standard Shipping (4PX, Yanwen or Yun Express), free for most countries, and Express Shipping (DHL Express, FedEx or SF Express) at 15-50 USD depending on the country, free for orders over 270 USD in most countries (checked 2026-11-11).
- Delivery times. It says an in-stock order ships within 3 working days, Standard takes about 2 weeks after shipping out (up to 1-3 months for some countries, and the store makes no refund for that transit time) and Express takes about 3-7 days. Festive seasons and other circumstances can change the timing.
- Taxes and fees. The buyer pays any customs, import or processing fees. The page says Standard via YunExpress is tax-inclusive for some countries, that remote areas can carry extra Express charges, and that a parcel refused or left uncollected over taxes is deducted two-way freight and may be destroyed with no refund.
- Where it ships. The page says the store can generally ship to most countries by Express and many by Standard, and to confirm Standard with the team for your country. It cannot ship to PO boxes or APO/FPO addresses and can only use Express to Hawaii. It does not name the US, Canada, the UK, Australia or New Zealand, so confirm before you pay.
- Lost parcels. If a parcel has been in transit for at least 3 months, the page offers a one-time reshipment or a full refund for orders under $50 and a 50% refund for orders above $50.
Returns and warranty
- Returns. The return page allows returning any non-customized product that is still factory sealed within 30 days of receiving it, with the buyer paying the shipping. Email [email protected] within that period; the store asks for the return to be shipped within 5 working days of the RMA instructions and in most cases processes a refund within 5 business days of inspecting it (checked 2026-11-11).
- Opened items. A product opened within the first 7 days after delivery can be returned for the price minus a restocking fee of 35% of its retail value, including when it still works properly.
- Refund or credit. The buyer can choose a refund to the original payment method (PayPal or card) or store credit; with no answer within 48 hours of confirmation the default is store credit, which can also be prioritized during promotions, final-sale events and for items 40% or more off retail.
- Not returnable. Customized products, including faceplate designs, are non-refundable, and the page says the same applies to carry cases, cables, ear tips and other accessories, "due to hygiene purposes". If one item in a package is defective, incorrect or missing, the refund or replacement covers only that item.
- Warranty. The page gives a 1-year warranty on products, excluding carry cases, ear tips and other accessories, and 3 months on cables and adapters, from the date of purchase. It covers factory defects that affect proper function, not damage from human error, negligence, accidents, dismantling, water, abuse or modification (checked 2026-11-11).
- Not covered or limited. It does not apply to items bought elsewhere (AliExpress, Amazon, local dealers and the like), prize or giveaway items, normal wear or colour change, commercial use, or items that were stolen or went missing. Coverage is limited for products 40% or more off retail, for review units and for items repaired or modified by anyone Linsoul has not authorized.
- Claims. Email [email protected] with the order number, the issue and photos and videos of the fault. The store may ask for the unit back for a replacement. It covers shipping for some defects reported within 7 days of delivery if the fault can be shown on video or photo; after 7 days the buyer ships it back. For wrong or missing items an unboxing video of the whole sealed parcel is required.
Before you buy
Linsoul says it was founded in 2016 by the Crazy HiFi team to bring Chinese HiFi makers closer to listeners worldwide, and that it now sells other makers' products alongside four brands of its own, THIEAUDIO, Kiwi Ears, ZiiGaat and Tripowin (checked 2026-11-11).
We have not read any independent review of this product or of the store. Ratings and owner reviews shown on the store's own pages are the store's and were not verified.
What we liked
- The page gives the driver mix (dynamic, balanced armature and planar) and a 9.5mm DLC dynamic driver size
- The cable build is spelled out: 1000-core Furukawa copper made of eight strands of 125 cores
- Two colors at the same $368 price
- The shell material is named: CNC-machined aluminum alloy
Worth noting
- The listing text gives no per-type driver counts beyond the total of 7, and no impedance, sensitivity or frequency response
- The listing text gives no plug type, connector type or cable length
- The page's sound and cable claims are the maker's wording and cannot be checked from the listing
Questions before you buy
What drivers does the CVJ MYTHERA list?
The page describes a 7-driver hybrid system combining dynamic, balanced armature and planar drivers, with a 9.5mm custom DLC dynamic driver and a custom micro planar driver. It gives no count for each type.
What colors are offered?
Black and Gold, both at $368 according to the variants.
What cable does it use?
The page describes a high-purity 1000-core Furukawa copper cable built from eight strands, each of 125 individually woven cores. The listing text gives no plug type or length.
Can I return it if I change my mind?
The return page allows returning a non-customized product that is still factory sealed within 30 days of receiving it, with the buyer paying shipping. An opened product returned within 7 days carries a 35% restocking fee. Refunds go to the original payment method or to store credit, which is the default if you do not choose.
How long does shipping take?
The shipping page says in-stock orders ship within 3 working days. Standard Shipping takes about 2 weeks after shipping out, up to 1-3 months for some countries, and Express takes about 3-7 days. Standard is free for most countries; Express costs 15-50 USD and is free over 270 USD (over $499.99 for large items such as headphones and desktop DAC/AMPs).
Does Linsoul ship to the US, Canada, the UK, Australia and New Zealand?
The page says Linsoul can generally ship to most countries by Express and many by Standard, and to ask the team about Standard for your country. It names no restriction for the US, Canada, the UK, Australia or New Zealand, but it does not list them either, and it can only use Express to Hawaii.
What warranty does it have?
The page gives a 1-year warranty on products from the purchase date for factory defects, not for human error, accidents or modification. Coverage is limited for items 40% or more off retail and for review units, and it does not apply to items bought from other sellers.
Sources & verification
What this review is based on and the day we last read it. Specs and claims from the maker are the maker’s own; the verdict and the rating are ours.
From the store
- CVJ MYTHERA product page: specs, options and price (the buy buttons go there)Specs, options and the listed priceRead November 11, 2026
- Linsoul shipping pageStandard and Express shipping, costs and times, import taxes, lost parcels, couriers, trackingRead November 11, 2026
- Linsoul return policy and warranty page30-day returns of sealed items, 35% restocking fee on opened ones, 1-year and 3-month warranties, exclusions, how to claimRead November 11, 2026
- Linsoul support FAQThe same shipping, return and warranty rules in question form, plus order changes and cancellationsRead November 11, 2026
- About LinsoulFounded in 2016 by the Crazy HiFi team; names its own brands; the awards listed there are the store's own accountRead November 11, 2026
What we couldn’t verify
- The page's sound descriptions (deep bass, smooth extended treble, lossless sound quality) are the maker's claims and were not checked here.
- Per the page the system has 7 drivers, but the listing text gives no plug type, connector type, cable length, impedance, sensitivity, frequency response, weight or per-type driver counts.
- The page says the cable's 1000 cores give minimal resistance and distortion; that is a maker claim and was not checked here.
- We have not read an independent review of this product or the store, and the store's own ratings were not verified. We read the store's catalog description only: a specification table or image shown just on the live page was not read.
- The shipping page names no US, Canada, UK, Australia or New Zealand times or fees: its figures are general and we could not confirm them for these countries.
Spotted an error or something out of date? Tell us and we’ll fix it and update the date.


