SKU: 32634781568

Open Box Hidizs MD4 4 Balanced Armature Drivers HiFi IEMs (Ships Only to Japan)

Sale price$102.06 Regular price$113.40
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Ships within 48 hours · Estimated delivery Aug 20 - Aug 25

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Description

Open Box Hidizs MD4 4 Balanced Armature Drivers HiFi IEMs (Ships Only to Japan)Note: Our open box products, used exclusively for unboxing videos, are original and unworn, available at a surprise discount price. Only one of each type in stockfirst come, first served. Purchase now for immediate shipping. Impressive Clarity With Four Custom Designed Balanced Armature Drivers: With four custom designed balanced armature drivers on each side, the Hidizs MD4 brings a charming acoustic performance. The pair produces a punchy lower end

Note: Our open box products, used exclusively for unboxing videos, are original and unworn, available at a surprise discount price. Only one of each type in stock—first come, first served. Purchase now for immediate shipping.

Impressive Clarity With Four Custom-Designed Balanced Armature Drivers:-

With four custom-designed balanced armature drivers on each side, the Hidizs MD4 brings a charming acoustic performance. The pair produces a punchy lower end with a rich midrange and a smooth, lively treble region. It complements different genres of music well with its unmatched clarity and professional tuning.

Precisely Adjusted Three-Way Frequency Crossover:-

The four Custom BA drivers on the MD4 are arranged in a professionally designed three-way frequency crossover. It allows each driver unit to work with full accuracy and results in lower distortion in the output signal. The precisely adjusted frequency crossover band reduces any frequency overlapping issues and presents with a clean performance.

3D-Printed Acoustic Tubes:-

Hidizs has redesigned the acoustic structure of the MD4 ear shells. They have featured 3D printed straight acoustic tubes that ensure continuous and clean audio transmission with low signal loss during the transmission. 

Dual Tuning Switches For Four Tuning Adjustments:-

There are two tuning switches at the back of the ear shells. They allow the users to easily adjust the output tuning bringing four different tunings in a single pair of earphones. The pair can be adjusted for balanced, warm, Treble enhancing, and bass-enhancing tunings.

Exquisite Craftsmanship:-

Hidizs is well-known for its outstanding craftsmanship. The brand has designed the latest MD4 using handmade celluloid face plates, CNC machined aluminum alloy middle frame, and aluminum alloy ear nozzle. MD4 looks stunning, it is available in three striking color options.

Comfortable & Ergonomic:-

The connector on the included stock cable adopts an elbow-shaped design for an ergonomic fit. The cable turns around your ears and makes the earphones sit into your ears firmly. Hidizs has designed the ear shells in ergonomic shape for a comfortable wearing experience.

High-Quality Cable:-

Hidizs MD4 comes packed with a high-purity mixed hybrid cable. The cable has a 4-core braided design with 60 high-purity silver wires and 60 high-purity OFC wires tightly twisted together. It uses standard 0.78mm 2-pin connectors and a 3.5mm single-ended termination.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 32634781568

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4.8 ★★★★★
Based on 14 reviews
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K
Verified Purchase
Kayla Laufenberg
Carnegie, US
★★★★★ 2
Stops working after one use
Color: #03 Champagne
Stops sprays very quickly. I used it once to see how it is and now it doesn’t spray.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 31, 2025
B
Verified Purchase
Brandee Martinho
Bozeman, US
★★★★★ 5
The dogs loved it! Will buy again.
Style: Squeaky Chicken
My dogs have really enjoyed all the layers to this toy. It squeaks and has a noisy film on the inside of the cloth that they really like. The toy itself is very stiff and rigid but they like that. It’s been about 3 months and they recently broke through the pink layer so it lasts quite a while. It was a challenge for them to get the layer off once they had broken through the stitching so it would keep him occupied for a very long time.
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Reviewed in the United States on January 21, 2026
R
Verified Purchase
Randy C.
West Palm Beach, US
★★★★★ 5
My dog LOVES this, but...
Style: Squeaky Duck
My dog loved this right out of the box, she didn't learn to squeak it for a couple of hours, but she just stopped playing with her other toys, ragged as they may be... My dog is a Manchester/hound dog mix, of some sort, I'm only sure about the Manchester, she resembles them in look, size, weight, and all else. She weighs approximately 20-ish pounds, or so. With that said, like I said, she loves it, so much so that within 16 waking hours after its arrival she brought me the inner squeaker, the body was in the kitchen. :) She tore off the top part of the head and gained access to the squeaker, and EXACTLY as advertised and other reviews, it is a really good squeaky toy, she really doesn't seem to mind that the outer portion is gone, the (seemingly) durable squeaker might actually last. She can still play with the 'body', the toy is made that when (not if) they rip off an appendage, the nentire innards WILL NOT come out. It's a well designed toy in that respect. So, at times she will play with that too, she has brought me the BODY several times too, My dog is a really CRAZY chewer, she is somewhere under a year old and she will chew on anything that she is in front of her, including rocks, a blade of grass as she runs by, furniture legs, window sills, you name it, she has eaten it. She is a problem dog, but we picked her, and we'd do the same if it was our kid, we wouldn't throw them out. :) She has to be watched constantly, that is not the most fun, but, like they say, 'It is what it is'. I mention all of that to show that even though she is a crazy chewer, the rubber portion of the toy is still 'with us', for now, I will update this if anything else develops, and I am sure it will. Oh yeah, I really need to add, I don't think that the makers can make a chew toy 'outer' from anything that will last that long, not unless you go to a rope material, and I did not want that, it can be swallowed and cause more trouble. (Fabric can be swallowed too, but it's at least softer...) So, really, more than likely you can't get any better than this if your dog is a crazy chewer too.
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Reviewed in the United States on July 1, 2023
A
Verified Purchase
Amanda Pike
Alexandria, US
★★★★★ 1
Awful Durability
Style: Squeaky Chicken
My dog had this toy for all of 30 minutes an COMPLETELY destroyed it. He is not an aggressive chewer, and has had plenty of rip and reveal toys from Bark Box last WEEKS. I thought I'd try out another brand, but I will be swiftly placing a Bark Box order. I am very disappointed in the durability and quality of this toy thay is supposed to survive non-agressive chewing. If I could give 0 stars, I would have.
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Reviewed in the United States on May 15, 2026
M
Verified Purchase
Mrs. M
Fort Morgan, US
★★★★★ 4
Feet
Style: Squeaky Duck
Dogs love it, but tore off the feet within minutes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 26, 2026

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