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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
• LERTOSEN USB C — biggest strength: a 2-in-1 USB-C to 3.5mm adapter that passes audio through a smart DAC and still lets PD 60W charging run at the same time, so you can listen and charge from one port.
• LERTOSEN USB C — biggest trade-off: it is a niche tool with a long compatibility warning list — no QC 3.0, no Samsung Super Fast Charging, no wire control or calling on iPad Pro 2018, and no support for OMTP headsets or separate microphone accessories.
• JMDDS USB Charger Charging — biggest strength: a simple Micro-USB charging cable rated for up to 10W (5V⎓2A) with 480Mbps data transfer and built-in overheat, overload, over-charge and short-circuit safeguards.
• JMDDS USB Charger Charging — biggest trade-off: it is Micro-USB, not USB-C, and it tops out at 10W — so it will not fast-charge a modern phone, tablet or laptop.
• Buy LERTOSEN USB C if you have a USB-C phone or tablet with no headphone jack and you refuse to give up wired audio.
• Buy JMDDS USB Charger Charging if you need a spare or replacement charging lead for a Bluetooth headphone, speaker, game controller or other Micro-USB gadget.
This is an audio adapter first and a charging accessory second — and that order matters. The LERTOSEN dongle plugs into a USB-C port and splits it into two jobs: a 3.5mm aux jack for wired headphones, and a USB-C pass-through rated for PD 60W charging. Inside, the smart DAC handles the digital-to-analog conversion for HiFi audio. In my opinion, that combination is the whole point of the product: you get your wired sound back on a phone that dropped the headphone jack, and you do not have to unplug your headphones every time the battery gets low.
Who should buy it: anyone with a USB-C device and a favorite pair of wired headphones, especially people who take long calls or long drives and want listening and charging at the same time. Who should skip it: if you use a OnePlus, Amazon Fire Max, GoPro, Switch or Moto device, this is not the adapter for you. Skip it too if you need Qualcomm Quick Charge 3.0, Samsung Super Fast Charging, OMTP headsets, or a headset with a separate microphone accessory — none of those are supported. And note the calling caveat: call functions will not work on a phone that already has a 3.5mm jack, and on iPad Pro 2018 both wire control and calling are unavailable.
JMDDS USB Charger Charging: Who It's For
The JMDDS cable is the opposite kind of product: unglamorous, single-purpose, and honest about it. It is a Micro-USB cable built for wireless Bluetooth speakers, headphones, headsets and earphones, plus game controllers, consoles and other small devices that still charge over Micro-USB. Charging is rated up to 10W across common profiles (5V⎓2A, 5V⎓1A, 5V⎓500mA), and it also handles data at up to 480Mbps — handy for syncing a controller or moving files off a small device.
The safety story is the part I actually like here. The exterior shell is flame-retardant, and there are built-in safeguards against overheating, overload, over-charging and short circuits. For a cable that will probably live permanently plugged into a speaker on a shelf or a headset on a desk, that is the spec that matters most. The cable is black, round, USB Type A on the host end and male-to-male, and it weighs 0.06 kg — noticeably more substantial in hand than the tiny LERTOSEN adapter. The compatible-device list is long and varied: computers, laptops, smartphones, tablets, gaming consoles, smart watches, security cameras, headphones, DVD players, printers, modems, routers, microphones, TVs, speakers, cameras, SSDs, amplifiers, charging adapters and power banks.
Who should buy it: anyone who has lost, frayed or wants a backup charging cord for a Bluetooth headset, speaker or controller. Who should skip it: anyone whose device charges over USB-C, and anyone expecting real fast charging. At 10W this is a steady trickle-to-moderate charge, not a high-wattage top-up — and it will not power a laptop. JMDDS also backs it with a 365-day after-sales guarantee, which is worth knowing if longevity is your worry.
• Best for listening while charging → LERTOSEN USB C. It is the only one of the two that splits a USB-C port into audio plus PD 60W power.
• Best for wired headphone audio quality → LERTOSEN USB C. The smart DAC is there specifically for HiFi audio over the 3.5mm jack.
• Best for a Bluetooth headphone or speaker → JMDDS USB Charger Charging. That is exactly what it was designed to charge.
• Best for raw charging speed → LERTOSEN USB C. PD 60W versus the JMDDS cable's 10W ceiling is not a close comparison.
• Best for wide device compatibility → JMDDS USB Charger Charging. Its compatible list spans computers, consoles, cameras, routers and more, with no brand exclusions noted.
• Best for safety features → JMDDS USB Charger Charging. Flame-retardant shell plus overheat, overload, over-charge and short-circuit protection.
• Best for travel size → LERTOSEN USB C. At 0.01 kg it disappears in a pocket; the JMDDS cable is 0.06 kg and full-length.
• Best for a phone with no headphone jack → LERTOSEN USB C, provided your model is not on the excluded list.
If I had to pick one, I would buy the LERTOSEN USB C — because it solves a problem nothing else on this page can. It gives a modern USB-C phone its wired headphone jack back without forcing you to choose between listening and charging, and PD 60W means the charging side is genuinely useful rather than an afterthought. The JMDDS cable is a good, safe, well-protected Micro-USB lead, and I would happily recommend it as a spare for a Bluetooth headset or speaker. But it is a replacement cord, not a capability upgrade. The LERTOSEN adapter is the one that changes what your device can do.
how to charge headphones faster
Match the cable and charger to what the headset actually accepts. The JMDDS cable supports up to 10W (5V⎓2A), so pairing it with a charger that can deliver 2A gets you its maximum rate. For a USB-C phone being charged through the LERTOSEN adapter, PD 60W is supported — but note that Qualcomm Quick Charge 3.0 and Samsung Super Fast Charging are not.
how to charge headphones
Plug the correct connector into the headset and the other end into a power source. The JMDDS cable is Micro-USB, so it fits Bluetooth speakers, headphones, headsets, earphones and controllers that use that port. The LERTOSEN adapter is not a charging cable for headphones — it charges your phone over USB-C while your wired headphones play through the 3.5mm jack.
how to fast charge bose headphones
Check which port your model uses before buying. If it is Micro-USB, the JMDDS cable charges at up to 10W with built-in overheat, overload, over-charge and short-circuit protection. If your headphones are USB-C, the LERTOSEN adapter is not the right accessory — it is an audio-and-charging splitter for phones and tablets, not a headphone charging lead.
is fast charging bad for headphones
Nothing in these data sheets suggests fast charging damages headphones; both products include safeguards rather than warnings. The JMDDS cable has a flame-retardant shell and protection against overheating, overload, over-charging and short circuits. Just stay within each device's rated input — 10W on the JMDDS cable — and avoid chargers that exceed what the headset was built for. As always, check the current price on Amazon before you decide.
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