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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want the more durable build and the tidier fit for gaming controllers and phones, choose Mr Rex 2.5mm; if you need a straightforward, flexible replacement cord mainly for Bose QC25/QC35 listening and calls, choose EARLA TEC Replacement Audio Cable.
• Mr Rex 2.5mm — biggest strength: A 5 ft braided, tangle-free cable with a zinc-alloy control box, 24K gold-plated jack and a 135-degree angled 3.5mm plug that's built to survive daily heavy use.
• Mr Rex 2.5mm — biggest trade-off: It does not fit Sennheiser or Audio-Technica headphones, so you must confirm your model's 2.5mm jack before buying.
• EARLA TEC Replacement Audio Cable — biggest strength: A soft TPU 1.5 m cord with a straight plug on one end and an "L"-shaped plug on the other, plus inline mic and volume/track buttons for iPhone and Android.
• EARLA TEC Replacement Audio Cable — biggest trade-off: Its compatibility list is narrower — it's aimed squarely at Bose QuietComfort, SoundLink and SoundTrue headphones rather than a broad range of brands.
• Who each pick is for: Mr Rex 2.5mm suits mixed use across JBL, Bose, AKG and gaming controllers; EARLA TEC suits a Bose QC25/QC35 owner who wants a simple, flexible everyday spare.
The Mr Rex 2.5mm is the more "do-everything" cable of the two. One end is a 2.5mm plug that seats into headphone jacks on Bose 700, QuietComfort QC45, QC35II, QC35 and QC25, plus a long list of JBL models — E45BT, E55BT, E65BTNC, Everest and Tune series — and AKG models like the Y400, Y500 and Y50BT. The other end is a 3.5mm plug you can run into a Samsung Galaxy, an iPhone (with the appropriate adapter if your phone lacks a headphone port), a Moto or LG handset, a PS4 or Xbox controller, a laptop, or a Hi-Fi system. In other words, it's the cable I'd keep in a bag because it bridges a headphone with a 2.5mm port to almost any 3.5mm source you happen to be near.
Who should skip it? Anyone with Sennheiser or Audio-Technica headphones, since this cable isn't designed for those jacks. And if you only ever plug into one specific Bose model and want the simplest possible cord, the extra length and hardware may be more than you need.
EARLA TEC Replacement Audio Cable: Who It's For
The EARLA TEC is a focused replacement cord for Bose QuietComfort QC25 and QC35, plus SoundLink and SoundTrue headphones. It runs about 1.5 m (150 cm), the same rough working length as the Mr Rex, and it's made from a soft, durable TPU material that coils and stores easily. Where it differs in shape is at the plugs: one end is straight and the other is an "L" shape, which is handy when you want the cable to hug the side of a headphone rather than stick straight out.
The inline remote is the headline feature here. You get a microphone for hands-free calls and buttons for volume up/down and previous/next track — the button functions are called out specifically for iPhone and iPod. The mic works with iPhone 3GS through 6 Plus and various Samsung and Android phones, so it covers a lot of older and mainstream handsets. If you take calls while wearing QC25s or QC35s, that inline control is the whole point of buying a replacement in the first place.
The trade-off is reach — not length, but brand reach. This cable is built for the Bose family, and the compatibility list doesn't stretch to JBL, AKG or gaming controllers the way the Mr Rex does. The 3-pin connector also means it's a straightforward stereo-plus-mic cord rather than a multi-purpose one. If you own a Bose QC and want a cheap, flexible spare for listening and calls, it's a clean fit; if you need one cable to serve several different headphones, it isn't.
Side-by-Side: Which Should You Choose?
• Best for cable management → Mr Rex 2.5mm. The included Velcro strap and tangle-free braided build keep it tidy in a bag or case.
• Best for Bose QC25/QC35 owners who just want a spare → EARLA TEC. It's purpose-built for those models and stores easily thanks to the soft TPU jacket.
• Best for mixed use across brands → Mr Rex 2.5mm. It covers Bose, JBL and AKG headphones plus phones, laptops and PS4/Xbox controllers.
• Best for hands-free calls on iPhone/Android → EARLA TEC. The inline mic and volume/track buttons are its core selling point.
• Best for a plug that hugs the headphone → EARLA TEC. The straight-plus-L-shaped plug combo gives you flexibility on which side you route.
• Best for a broader source list → Mr Rex 2.5mm. Its 3.5mm end works with Samsung, iPhone, Moto, LG, computers and gaming controllers.
• Skip Mr Rex if you own Sennheiser or Audio-Technica → it's not made for those jacks. Skip EARLA TEC if you need one cable for JBL or AKG too.
In my opinion, the Mr Rex 2.5mm is the smarter buy for most people. It fits more headphones and more source devices, and the zinc-alloy hardware with the angled plug is the kind of detail that tends to outlast a flimsier cord. It covers the wired-with-inline-mic use case — calls, volume and playback control — while also doubling as a controller or laptop cable.
I'd only steer you to the EARLA TEC Replacement Audio Cable if you specifically own Bose QC25/QC35 headphones and want the softest, simplest flexible spare with working inline call and track controls. For a single-cable, do-it-all solution, Mr Rex wins.
FAQ
what is an inline mic on headphones
how to use wired headphones with mic on pc
Plug the 3.5mm end of the cable into your PC's headphone jack (or a splitter if your PC has separate mic and headphone ports). The inline mic then carries your voice for calls and chat, and the control buttons handle volume and playback where your device supports them.
Yes — the Mr Rex 2.5mm lists Bose 700, QC45, QC35II, QC35 and QC25 among its compatible headphones. Just confirm your model uses a 2.5mm jack, since it isn't designed for Sennheiser or Audio-Technica headphones.
It's built for Bose QuietComfort QC25/QC35, SoundLink and SoundTrue models, so it isn't the right pick for JBL, AKG or gaming controllers. If you need one cable to serve several headphone brands, the Mr Rex 2.5mm is the broader fit.
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See also: EARLA TEC Replacement Audio Cable vs ASKUBSKU Earbuds 3.5mm, Cypher.V Replacement Aux Extension vs MINOCHI Replacement Audio Cable, GAMEPOWER JIN X 3.5mm vs Puiixur Replacement 3.5mm