--- product_id: 73294253 title: "- Replacement Audio Upgrade Cable for Sennheiser HD4.40, HD 4.40 BT, HD4.50, HD 4.50 BTNC, HD4.30i, HD4.30G Headphones 1.2meters/4feet" brand: "newfantasia" price: "160 kr" currency: DKK in_stock: true reviews_count: 13 url: https://www.desertcart.dk/products/73294253-replacement-audio-upgrade-cable-for-sennheiser-hd4-40-hd-4 store_origin: DK region: Denmark --- # 1.2m length for flexible use 3.5mm & 6.35mm to 2.5mm lockable jack Braided tangle-free durable cable - Replacement Audio Upgrade Cable for Sennheiser HD4.40, HD 4.40 BT, HD4.50, HD 4.50 BTNC, HD4.30i, HD4.30G Headphones 1.2meters/4feet **Brand:** newfantasia **Price:** 160 kr **Availability:** ✅ In Stock ## Summary > 🎧 Upgrade your sound game with the cable that means business. ## Quick Answers - **What is this?** - Replacement Audio Upgrade Cable for Sennheiser HD4.40, HD 4.40 BT, HD4.50, HD 4.50 BTNC, HD4.30i, HD4.30G Headphones 1.2meters/4feet by newfantasia - **How much does it cost?** 160 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/73294253-replacement-audio-upgrade-cable-for-sennheiser-hd4-40-hd-4) ## Best For - newfantasia enthusiasts ## Why This Product - Trusted newfantasia brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Extended Reach Freedom:** 1.2 meters (4 feet) length gives you the freedom to move without compromising sound quality or style. - • **Seamless Compatibility:** Perfectly engineered for Sennheiser HD4 series & HD400S headphones, ensuring flawless fit and function. - • **Tangle-Free Durability:** Braided 4mm cable resists knots and wear, built to last through daily hustle and commute. - • **Locking Connector Design:** Secure 2.5mm jack locks in place just like the original, preventing accidental disconnects during your busiest days. - • **Premium Audio Transmission:** OFC (Oxygen-Free Copper) wiring delivers crystal-clear HiFi sound, elevating your listening experience. ## Overview The NewFantasia Replacement Audio Upgrade Cable is a premium 1.2-meter braided, tangle-free cable designed specifically for Sennheiser HD4 series and HD400S headphones. Featuring oxygen-free copper wiring and a secure locking 2.5mm connector, it ensures superior HiFi audio transmission and durability, making it the essential upgrade for professionals who demand flawless sound and reliable performance. ## Description Replacement Audio upgrade HiFi Cable For Sennheiser HD4.40 / HD 4.40 BT / HD4.50 / HD 4.50 BTNC / HD4.30i / HD4.30G / HD400S Headphone Extension Cords ## Features - Replacement Audio upgrade HIFI Cable For Sennheiser HD4.40 / HD 4.40 BT / HD4.50 / HD 4.50 BTNC / HD4.30i / HD4.30G / HD400S Headphones - Length: 1.2meters(4ft), package include: 1*replacement cable ( there is no headphone included ) - Cable Diameter : 4mm,cable material:the inside cable is OFC wire,the outside cable is Braided Tangle-Free cable - Jack : 3.5mm Male & 6.35mm adapter to 2.5mm Male(comes with the lock the same as the Original cable) - The 2.5mm end on this cable is only compatible with Sennheiser HD4.40 / HD4.40 bt / HD4.50 / HD 4.50 btnc / HD4.30i / HD4.30G / HD400S Headphones ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B07BPKDX5X | | Best Sellers Rank | #28,986 in Electronics (See Top 100 in Electronics) #113 in Headphone Extension Cords | | Brand Name | NewFantasia | | Cable Type | AUX | | Color | Black | | Compatible Devices | Headphone | | Connectivity Technology | Auxiliary | | Connector Gender | Male | | Connector Type | Auxiliary | | Customer Reviews | 4.4 4.4 out of 5 stars (641) 4.4 out of 5 stars | | Indoor Outdoor Usage | Indoor, Outdoor | | Item Shape | Round | | Item Weight | 0.03 Kilograms | | Manufacturer | NewFantasia | | Model | 8541765752 | | Number Of Items | 1 | | Number Of Pins | 3 | | Other Special Features Of The Product | Braided, Tangle Free | | Outer Material | Braided | | Part Number | HD4.40SJ-120 | | Recommended Uses For Product | audio transmission for Sennheiser headphones | | Specification Met | RoHS | | Unit Count | 1 Count | ## Product Details - **Brand:** NewFantasia - **Cable Type:** AUX - **Compatible Devices:** Headphone - **Connector Type:** Auxiliary - **Special Feature:** Braided, Tangle Free ## Images ![- Replacement Audio Upgrade Cable for Sennheiser HD4.40, HD 4.40 BT, HD4.50, HD 4.50 BTNC, HD4.30i, HD4.30G Headphones 1.2meters/4feet - Image 1](https://m.media-amazon.com/images/I/71VDtP2dByL.jpg) ![- Replacement Audio Upgrade Cable for Sennheiser HD4.40, HD 4.40 BT, HD4.50, HD 4.50 BTNC, HD4.30i, HD4.30G Headphones 1.2meters/4feet - Image 2](https://m.media-amazon.com/images/I/71G1tjdQ5gL.jpg) ![- Replacement Audio Upgrade Cable for Sennheiser HD4.40, HD 4.40 BT, HD4.50, HD 4.50 BTNC, HD4.30i, HD4.30G Headphones 1.2meters/4feet - Image 3](https://m.media-amazon.com/images/I/81-GU4uFECL.jpg) ![- Replacement Audio Upgrade Cable for Sennheiser HD4.40, HD 4.40 BT, HD4.50, HD 4.50 BTNC, HD4.30i, HD4.30G Headphones 1.2meters/4feet - Image 4](https://m.media-amazon.com/images/I/71pdh7TqjDL.jpg) ![- Replacement Audio Upgrade Cable for Sennheiser HD4.40, HD 4.40 BT, HD4.50, HD 4.50 BTNC, HD4.30i, HD4.30G Headphones 1.2meters/4feet - Image 5](https://m.media-amazon.com/images/I/81JUuTpbiRL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works with HD400s *by on Reviewed in the United States April 1, 2023* I can confirm that this cables works with the Sennheiser HD400s headphones. It fits into the 2.5mm port and rotates/locks in just like the cable that comes standard with the headphones.I was having issues with the original cable when plugging into certain devices or extension cables, and this takes care of that. I got the 3 meter length cable, and now I can plug my headphones into my PC speakers and listen to music from my bed which is what I wanted to do all along with the HD400s.Lastly, I'll say the build quality matches the price. I wish I didn't have to spend $20 to get the full experience out of these headphones, but this cable is definitely an improvement over the standard one in all regards. The cable sleeve feels really durable, and the cable itself is surprisingly light and flexible.Two thumbs up for anyone looking to replace the stupid cable that comes with the HD400s. ### ⭐⭐⭐⭐⭐ Sturdy and works as expected *by on Reviewed in the United States July 15, 2020* EDIT: I apologise for the bad review. It turns out I was listening to YouTube while on a call, and the call was making the audio sound bad for some reason. The cable is fantastic; the audio sounds good, and it is sturdy and flexible. It fits snugly in my phone with no chance of falling out.Below is my original review, ignore that. That was purely user error.The cable works, I guess, but it's far too bad for me to say it's worth buying. The sound quality is TRASH. This isn't a defect with the headphones audio port, my HD 4.50 BTNC sounded great with the original cable. I would avoid this product ### ⭐⭐⭐⭐⭐ If you have SENNHEISER Headphones model HD 4.50 BTNC, this replacement cable is a MUST-HAVE. *by on Reviewed in the United States May 6, 2021* I purchased SENNHEISER Headphones model HD 4.50 BTNC. I nearly returned them because the cable that was included with the headphones did not fit properly in the 2.5mm headphone jack. After trying some other cables that also did not fit, I was certain that I would have to return these headphones. Then I discovered this replacement cable ... the "NewFantasia Replacement Audio Upgrade Cable for Sennheiser HD 4.50 BTNC". It fit perfectly ... nice and snug. If you look close at the jack, there are nibs that act as a locking mechanism. And if you look close at the 2.5mm plug on this replacement cable, you can see where the nibs fit into slots. When you insert this replacement cable into the headphones, you have to turn them until they lock. I'm somewhat annoyed that SENNHEISER packaged such a poorly-designed cable with these HD 4.50 BTNC headphones, but I'm thankful that I found this replacement cable ... it's exactly what I needed. (BTW, 95% of the time, I use the Bluetooth connection, but there are times when a cable is necessary, such as when I'm playing my guitar into my headphones.) ## Frequently Bought Together - NewFantasia Replacement Audio Upgrade Cable for Sennheiser HD4.40, HD 4.40 BT, HD4.50, HD 4.50 BTNC, HD4.30i, HD4.30G Headphones 1.2meters/4feet - Sennheiser Consumer Audio HD 450BT Bluetooth 5.0 Wireless Headphone with Active Noise Cancellation - 30-Hour Battery Life, USB-C Fast Charging, Virtual Assistant Button, Foldable - Black - GVOEARS Replacement Ear Pads for Sennheiser HD4.50BT HD4.50BTNC HD4.40BT Headsets Earpads Replacement, Earpads Cushions for Sennheiser HD4.50BT (HD4.50 MF Black) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.dk/products/73294253-replacement-audio-upgrade-cable-for-sennheiser-hd4-40-hd-4](https://www.desertcart.dk/products/73294253-replacement-audio-upgrade-cable-for-sennheiser-hd4-40-hd-4) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-06-09*