We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-29 · 7 min read · Independent comparison
If you want one compact adapter that covers the widest spread of USB-C phones, tablets and laptops while still pushing up to 60W of fast charging, choose Marsno USB C Splitter; if you need an adapter tuned specifically for Samsung Galaxy models with a stated 0-to-70% charge in about 30 minutes at 60W, choose iHoto Samsung Galaxy Headphone.
• Marsno's biggest strength: broad USB-C compatibility (iPhone 15–17, Galaxy S21–S25, Pixel, iPad Pro, MacBook, Xperia) plus a Realtek DAC for clean audio and a braided 1-in-2-out cable with an 18-month warranty.
• Marsno's biggest trade-off: it is not for Lightning devices, not for two headphones, and it carries no video signal — so it is audio and power only.
• iHoto's biggest strength: a Samsung-first design with explicit Galaxy S26/S25 FE/A-series/Z Fold/Flip coverage, PD 3.0 up to 60W, and a stated 0–70% charge in 30 minutes at 60W.
• iHoto's biggest trade-off: it does not support data transfer, and its published compatibility list leans heavily toward Samsung and recent iPhones.
• Pick Marsno if you juggle multiple brands of USB-C gear and want one dongle that keeps up.
• Pick iHoto if your daily driver is a Galaxy phone and you want a Samsung-labeled match.
The Marsno splitter is a 1-in-2-out dongle: one male USB-C plugs into your phone or laptop, and two female USB-C ports split off — one for headphones, one for charging. It carries a Realtek high-resolution DAC, so the audio path is decoded in the adapter rather than relying on whatever the host device gives you. There is also an EJ899M charging chip supporting Power Delivery up to 60W (20V/3A), which the maker says keeps voltage and current stable. The cable is nylon-braided, grey with a metallic finish, and measures about 5 x 0.98 x 0.2 inches. It ships with an 18-month warranty and around-the-clock support.
This is the pick for the person who owns a mixed bag of hardware. The listed compatibility spans iPhone 17/16/15, iPad Pro and iPad Air, MacBook and MacBook Pro, Galaxy S20 through S25 plus Note 10, Pixel 2 through 7, Sony Xperia, Huawei P-series, LG, and more. If you rotate between a Galaxy phone on weekdays, an iPad on the couch and a MacBook at a desk, one adapter in your bag covers all three. It also makes sense for anyone whose device dropped the 3.5mm jack but who still wants wired listening — with a plugged-in charger running at the same time.
Skip it if you are on a Lightning iPhone, since it simply will not connect. Skip it if you hoped to plug in two sets of headphones — the maker is explicit that this is not for two headphones; the second port is charging only. Skip it if you need video passthrough to a monitor, because it cannot transmit HDMI, VGA or any video signal. And if you are chasing maximum charging speed on a very new phone, note the maker's own caution that Quick Charge may not be supported on some newer models — a PD wall charger is the recommended pairing for best results.
The iHoto adapter is the same 1-in-2-out idea, but positioned squarely at Galaxy owners. It is a black USB-C dongle with two ports: audio out and charging in. Its headline claim is speed — 60W Power Delivery 3.0, with the maker stating a Galaxy A17 goes from 0 to 70% in 30 minutes at 60W max. The audio side uses a built-in DAC chip supporting up to 48kHz and 24-bit lossless output, and the port works with both CTIA and OMTP headset wiring standards, which matters if you own an older wired headset with a different pin layout. Plug and play, no drivers.
The compatibility list reads like a Samsung catalog: Galaxy S26, S26+, S26 Ultra, S25 FE, S25 Ultra, S25 Edge, S25, S24, S23, S22, S21, S20, A55, A54, A53, A36, A35, A34, A33, A17, A16 5G, Z Fold 7/6/5 and Z Flip 7/6. It also lists iPhone 17/17 Pro/17 Pro Max, iPhone Air, 16e, 16 series, 15 series, Google Pixel 10 series, iPad Pro and LG. It transfers audio from phones, MP3 players, CD players, laptops and tablets out to headsets and speakers. It comes with a 1-year manufacturer warranty and a stated 24-hour response window for support questions.
Buy this one if you are all-in on Samsung and want a dongle whose documentation speaks your model's language — especially if you want a concrete fast-charge figure to anchor your expectations. It also suits anyone with a mixed-standard wired headset thanks to CTIA/OMTP support.
Skip it if data transfer matters, because the maker states plainly that it does not support it. Skip it if you want a long, published list of non-Samsung laptops and tablets as your daily drivers — the emphasis here is clearly mobile Samsung. And as with the Marsno, the maker warns Quick Charge may not work on some new phones, so pair it with a USB-C PD wall charger for the fast-charge behavior described.
Side-by-Side: Which Should You Choose?
• Best for the widest device compatibility → Marsno USB C Splitter. Its list covers iPhone, Galaxy, Pixel, iPad, MacBook, Xperia, Huawei and LG in one adapter.
• Best for older wired headsets → iHoto Samsung Galaxy Headphone. It explicitly supports both CTIA and OMTP pin standards.
• Best for audio spec detail → Marsno USB C Splitter. It names a Realtek DAC and markets Hi-Fi decoding with noise reduction.
• Best for Samsung model coverage → iHoto Samsung Galaxy Headphone. S26 through S20, A-series, Z Fold and Z Flip are all named.
• Best for long-term protection → Marsno USB C Splitter. Its 18-month warranty edges past the iHoto's 1-year manufacturer warranty.
• Best for laptop and tablet audio → Marsno USB C Splitter. MacBook, iPad Pro and iPad Air appear on its list; iHoto names iPad Pro but centers on phones.
• Not a match for either → data transfer and video output. Neither adapter moves files, and the Marsno explicitly cannot carry video.
If I were buying for myself, I would take the Marsno USB C Splitter. In my opinion the deciding factor is range: I move between an iPhone, a Galaxy and a laptop, and Marsno's compatibility list covers all of them without a second dongle, with an 18-month warranty as a bonus. The Realtek DAC is the audio detail I care about, and 60W PD is plenty for the charging-while-listening use case both adapters are built for. I would only switch to the iHoto if a Samsung Galaxy were my one and only phone — in that case its Samsung-first documentation and its published fast-charge figure would tip me over. Either way, check the current price on Amazon before you commit, since both sit in the same compact-dongle category.
how to charge headphones faster
Neither adapter charges your headphones — the charging port is for your phone, tablet or laptop, not the headset. What these adapters do is let you power the host device at up to 60W Power Delivery while audio plays. For the fastest results, both makers recommend a PD USB-C wall charger rather than a basic brick, and both caution that Quick Charge may not work on some newer phones.
how to charge headphones
If you mean charging the phone while you listen, that is exactly what a 1-in-2-out splitter is for: plug the adapter into your device, put your USB-C headset in the audio port, and connect a charger to the second port. Both the Marsno and the iHoto run the charging and audio paths simultaneously. Just remember neither one is designed for two headphones — the second female port is for power only.
is fast charging bad for headphones
This is a common worry, and the design here separates the two functions. The 60W PD charging runs on the power path; the audio path runs through a dedicated DAC — Realtek on the Marsno, a 48kHz/24-bit chip on the iHoto — so charging current is not routed into your headset. Both makers describe stability features: the Marsno cites an EJ899M chip for stable voltage and current, and the iHoto notes PD 3.0 with a PD wall charger recommended.
how to fast charge bose headphones
If your Bose headphones are USB-C, they can plug into the audio port of either adapter for listening, but that port is not a charging output for the headset itself. To charge the headphones you would use their own charging cable and your regular charger. The adapter's role is the reverse: keeping your phone or laptop topped up at up to 60W while you listen through wired USB-C audio.
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