JCALLY JM6 Pro USB C Type-C to 3.5mm Dual DAC CX31993 MAX97220 digital audio portable decoding amp Hifi DAC mobile headset adapter for iPhone 15 plus max Galaxy S23 Ultra Android phone(Silver Blue)
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AI Verdict
This is a super cheap, powerful dongle DAC/amp that makes most budget IEMs louder and clearer, but it can have some hiss with very sensitive pairs.
This is a strong fit for anyone with budget IEMs who feels their phone or laptop isn't getting loud enough. The dedicated MAX97220 amplifier chip is the key feature, providing a clear power boost over standard dongles. For its very low price, it offers a measurable improvement in driving power for the vast majority of common earphones.
If you need to drive difficult planar IEMs or want to eliminate any chance of hiss, look for a dongle with a CS43131 DAC chip and a higher power output rating.
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Pros
- Adds a noticeable volume boost over a phone's built-in jack or a basic Apple dongle due to the MAX97220 amp chip.
- Drives most IEMs and some less demanding headphones easily, with a rated output of 60mW@32ohms.
- Features a solid-feeling aluminum housing on both ends, which feels more durable than all-plastic dongles.
- Plug-and-play on Windows, Android, and iPhone 15, requiring no special drivers for basic use.
- Provides excellent channel separation with a rated crosstalk of -110dB.
- Supports high-resolution audio up to 32-bit/384kHz PCM.
Cons
- Some users report a noticeable background hiss, especially with highly sensitive IEMs.
- The non-detachable cable is a potential point of failure; if it breaks, the whole unit is useless.
- A few owners have experienced random pops, crackles, or disconnections on both PC and mobile.
- Can get noticeably warm during use, which might be uncomfortable in a pocket.
Dimension Scores
It provides a clean, neutral sound with great channel separation (-110dB crosstalk), but some users report hiss with sensitive IEMs.
The MAX97220 amp provides a significant volume boost over phone jacks, making bass feel tighter and more controlled for most IEMs.
It's plug-and-play on most devices, but some users report random disconnections or glitches on certain phones and PCs.
It's incredibly lightweight (6g) with sturdy aluminum ends, but the non-detachable cable is a significant long-term durability concern.
Best For
- Driving budget to mid-range IEMs that need more power than a phone or Apple dongle can provide.
- A cheap audio upgrade for a laptop or desktop setup to get more volume and clarity.
- Users with Android phones or iPhone 15s who want a simple, plug-and-play external DAC/amp.
- Listening to music on the go, thanks to its tiny 6g weight and small form factor.
Not Recommended For
- Users of extremely sensitive IEMs who are susceptible to hearing a faint background hiss.
- Driving power-hungry planar or high-impedance headphones that require a dedicated desktop amp.
- Someone who prefers a DAC with a detachable cable for better long-term durability.
Watch Out For
- A background hiss or noise floor can be audible with sensitive IEMs; it may linger for a second after pausing music before a 'tick' sound as the amp turns off.
- Quality control can be inconsistent; some users report units failing after a couple of months or having audio glitches out of the box.
- It might not be a huge sonic upgrade over a standard Apple dongle for some users, with the main difference being just more volume.
- On some phones, like certain Samsung models, it can cause intermittent audio dropouts or lag.
Full Specifications
| ASIN | B0CWRFD81C |
| Brand | Girftu |
| Color | Silver Blue |
| Item Weight | 0.64 ounces |
| Manufacturer | Girftu |
| Connector Type | USB Type C |
| Item model number | A0519 |
| Package Dimensions | 2.8 x 2.8 x 0.6 inches |
| Specific Uses For Product | Headphones |
What Buyers Say
The most surprising thing is how much power this tiny dongle provides for the price. It's a real step-up in volume from a basic phone jack or the standard Apple dongle, making most IEMs feel more alive. The sound is generally clean and neutral, and it's built with nice aluminum ends that feel solid. However, the biggest recurring issue is a background hiss that some people notice with more sensitive IEMs. There are also scattered reports about quality control, with some units having connection glitches or failing after a few months.
“i was ready to return my new IEMs cause they sounded so quiet and dead on my phone but this little thing woke them RIGHT up, everything is louder and the bass actually hits now, cant believe it was this cheap.”
Common Praise
- Makes a noticeable difference in loudness and punch compared to a phone's direct output.
- Drives almost all budget and mid-tier IEMs without any issue.
- The metal housing on the connectors feels solid and well-made for the price.
- It's truly plug-and-play on both my phone and laptop, no setup needed.
- For the price, the improvement in dynamics and detail is impressive.
- The sound separation between left and right channels is excellent.
Common Complaints
- There's a faint but audible background hiss with my sensitive IEMs.
- The unit gets surprisingly warm after listening for a while.
- The cable isn't detachable, so I'm worried about it breaking over time.
- Mine started having popping sounds and connection drops after a while.
- It didn't last long, mine broke after only a couple of months of use.
Ownership Tips
- After a few weeks, you really start to appreciate the extra volume headroom on poorly recorded tracks or when on a noisy bus.
- The hiss that some people mention is real, but I only notice it on my most sensitive IEMs when no music is playing.
- The small size is great for a pocket, but also makes it easy to misplace if you're not careful.
- I've had it randomly disconnect from my phone once or twice, requiring me to unplug and replug it.
- The blue and silver finish looks nice out of the box but the metal ends can get scuffed up by keys in your pocket.
Frequently Asked Questions
Will this make my music sound better than the Apple dongle?
It will definitely be louder and can make your headphones sound more dynamic. Some users notice more detail, while others feel the main difference is just the volume boost.
Does the microphone on my headset work with this?
Yes, it supports microphone passthrough, so your headset's inline mic should work for calls and recordings.
Does it get hot?
Yes, some users report that the dongle can get noticeably warm or hot during extended use.
Is there any background hiss or noise?
Some owners have reported a noticeable hiss, especially with very sensitive IEMs. Others find it has a very low noise floor with no discernible hiss.
Does it work with an iPhone 15?
Yes, it works with the iPhone 15's USB-C port. Some users found the volume comparable to the Apple dongle until they adjusted phone settings to bypass limiters.
Do I need to install any drivers on my PC?
No, it's plug-and-play on Windows and should be automatically detected. However, you may need to go into your sound properties to select the 32-bit/384kHz output.
Is it powerful enough for planar IEMs?
It works for some, but it might struggle with more demanding planar IEMs. If you primarily use planars, you might want a DAC with a higher power output.
Buying Guide
You're buying this for one main reason: more power. Your phone or laptop has a built-in DAC/amp, but it's usually weak to save battery. This dongle bypasses it to give your wired headphones a much stronger signal. This translates to more volume and often a tighter, more controlled sound, especially in the bass. Don't expect it to magically change the core sound signature of your headphones, but it will let them perform closer to their full potential.
Dual DAC CX31993 + MAX97220
Think of this as a two-part system. The CX31993 is the 'brain' (DAC) that translates the digital 1s and 0s into music. The MAX97220 is the 'muscle' (amp) that pushes that music to your headphones. Having a separate amp chip is what gives this dongle more power than basic ones.
PCM up to 32bits/384kHz
This is like the resolution of a picture. It means the DAC can handle very high-quality audio files without down-sampling them. While most streaming music won't be this high-res, it's good future-proofing and great for audiophiles with local lossless files.
Signal to Noise Ratio (SNR): 124dB
This measures how loud the music is compared to any background hiss from the device itself. 124dB is a very high number, meaning the signal is much stronger than the noise, which should result in a clean, black background.
Alternatives
If this dongle's potential for hiss is a concern, search for a dongle DAC with a Cirrus Logic (CS43131) chip, which is often praised for having a darker background. If you need to power very difficult headphones, look for models that specify a higher power output, often over 100mW at 32 ohms.
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