Unleash audiophile-grade sound on the go with the Questyle M18i — a high-performance portable DAC and amplifier that combines advanced Bluetooth 5.4 with true lossless USB decoding. Engineered with dual ESS ES9219Q DACs, patented Current Mode Amplification, and Apple MFi certification, the M18i brings uncompromising audio quality to iOS, Android, PC, and even gaming consoles.
🎧 Flagship-Level Audio. Wireless Freedom.
The M18i is Questyle's most advanced dongle-style DAC/Amp yet, offering dual-mode connectivity via wired USB and Bluetooth 5.4. Whether you're streaming Hi-Res audio wirelessly or decoding lossless tracks via USB-C or Lightning, the M18i ensures seamless, distortion-free playback up to 384kHz/32-bit PCM.
Dual ESS ES9219Q DACs: Delivers pristine detail with rich timbre.
Bluetooth 5.4 + Snapdragon Sound: Experience ultra-stable, high-resolution wireless audio.
Hi-Fi USB Mode with XMOS 316: 16-core processor ensures stable, ultra-low-latency playback.
🔊 Patented Current Mode Amplification
With quad-core SiP CMA modules, the M18i pushes the boundary of portable performance, achieving a near-silent -130dB noise floor and ultra-low 0.0002% distortion. This cutting-edge technology provides the power of a desktop amp in a compact, efficient design, perfect for driving both IEMs and demanding headphones.
🔄 Switch Between Bluetooth & USB DAC Instantly
Switch effortlessly between Bluetooth and USB DAC modes depending on your setup. Enjoy studio-quality sound on the move or at your desk — no compromise, no fuss.
3.5mm & 4.4mm Dual Outputs: Supports both single-ended and balanced headphones.
Manual Gain Control: Tailor your output to your headphones and preferences.
OLED Display & Mic: Includes a clear screen for system status and a mic for calls.
🍏 Apple MFi Certified – Made for iOS
Unlike generic DACs, the Questyle M18i is Apple MFi Certified, ensuring full compatibility with iPhones and iPads. MFi certification guarantees stable performance, optimal power management, and long-term reliability with iOS devices.
⚡ Smart Power Management Modes
Mobile Mode: Uses internal battery, keeping your phone fully powered.
Bluetooth Mode: Battery-powered for wireless listening anytime, anywhere.
PC Mode: Charges and powers simultaneously for desktop use, with intelligent power distribution.
Why Choose Questyle M18i?
Hi-Res lossless sound via USB or Bluetooth
Dual flagship DACs and patented amplifier tech
MFi certified for seamless iOS integration
OLED screen, mic, gain control & versatile outputs
Ultra-low noise and distortion performance
Compact yet uncompromising, the Questyle M18i redefines what a portable DAC & amp can do. Perfect for audiophiles, gamers, and music lovers who demand the best — wherever they go.
Appearance
Material: CNC Anodized Aluminum Alloy
Color: Black
Size: 75mm x 35mm x 14.5mm
Bluetooth
Version 5.4
Supports: AAC, SBC, aptX, aptXHD, aptX adaptive, LDAC, LE Audio
Compatible Operating Systems
Android phones and tablets: Android 5.0 and above
PC: Win10 1803 and above
Apple cellphone: iOS (You need to buy an OTG cable for Lightning to USB-C)
Apple computer: Mac OS
DAC Capability
PCM: PCM: 44.1kHz-384kHz (16/24/32bit)
DSD: DSD64, DSD128, DSD256
Output Power
In the Box
M18i Mobile Headphone Amplifier with DAC
USB Type-C to Type-C Cable
USB Type-C to Type-A Cable
Warranty Card
User Manual
Warranty Period: 1 Year from the date of Invoice
Covered: Manufacturing Defects Only
Warranty Form: https://www.theaudiostore.in/pages/warranty-claim-form
Questyle Audio is a brand committed to exploring cutting-edge lossless audio technology, with the aim of offering perfect sound aesthetics and a seamless listening experience. We specialize in creating desktop and portable DAC & amplifier solutions, designed to enhance your audio experience to the fullest.
good sound and clear even without the dac and anything haven't tuned anything still clear sound!
TANCHJIM Bunny IEM With Mic - 3.5mm
10/03/2025
Nikesh Shrestha
End game (If there truly is one?)
After having owned a few kilo-buck IEMs, I was prepared to get something that was insane and probably endgame and rightly so Pritam sir recommended the FIR audio Xenon 6 and thus deep dived into this and I am sure this would be the end game IEM for me.
The XE6 is so wonderfully crafted looks like piece of jewelry and although a large IEM it is very comfortable for me for long sessions.
It sounded good from the start and was really different from the other IEMs. It started to sound even better and grew on to be the best I ever heard after listening to it for longer. I paired with Astell&Kern SP3000T and Hiby rs8 II and with desktop DAC Amps (FiiO K19, Topping D70. A70, Hifiman R2R and Xduoo TA 22) and the immersive, warm, musical and soundstage that filled my head all over. The sub bass is where it stands out the most, but the mids and highs are also so clear and crisp. I havent yet tried to change the atom modules as yet, I am sure this will make the XE6 even more great than that it already is.
The shells in the IEM I were crafted in the US (was crafted in China earlier, but as Trump wanted his MAGA force it had to be made in the US now)
This is definitely end game worthy!!!!
FiR Audio Xenon 6 IEM
10/01/2025
Shubham Karma
Moondrop Chu 2 Review (After 5 Months of Use)
I’ve been using the Moondrop Chu 2 for around 5 months, and I’m really happy with them overall. The size is very good – small, lightweight, and comfortable for long sessions. They fit well in the ears and don’t feel bulky at all.
In terms of sound, they’re excellent for the price. Clear mids, detailed highs, and a balanced tuning that works great for vocals and instruments. They still feel solid and well-built even after months of daily use.
The only drawback is the bass – while it’s clean and controlled, it’s not very strong. If you’re looking for heavy bass, these might not fully satisfy you.
But if you want clarity, balance, and detail in a compact design, the Chu 2 are a fantastic choice.
MOONDROP CHU II IEM
09/30/2025
ric ric
value for price
Very good value for its price range,
Solid build, durable metal shells
Comfortable fit and decent ergonomics
Tuning flexibility thanks to interchangeable nozzles
Soundstage depth isn’t exceptional (though width / height are decent)
The black nozzle for brighter tuning is a bit aggressive.
KEFINE Klean IEM
09/30/2025
Akash Nath
Awesome Product
This is my first IEM..so I'm not knowledgeable enough to decide if it's the best or not..but definitely a good buy..go for it guys..and don't forget to pair it up with a good dac....
KZ Castor Pro IEM With Mic
09/30/2025
Aditya Shetty
Nice upgrade cable for the price
I got these cables for my CHU II because I broke the stock cable.
For the following reasons I would say it's a solid recommendation for it's price.
The cables themselves are not as heavy as they might look and more importantly, they are not "stiff, ear hooks are also fairly comfortable.
Also, they don't particularly retain shapes and seem to be freer and tangle free.
The quality on the cables is good, it's been almost two weeks, and I haven't seen any quality issues come out.
The mic quality on calls is decent, very serviceable.
Don't expect upgrade cables to change the tonality of your IEMs.
These don't have a chin-slider, I would have loved to see that.
(THE COOLEST PART, they include a free hard case and tbf it's actually a good case better than some listed even for around 300INR out there)
AUDIOCULAR C03 8-Core Silver-Plated Cable with 3.5mm Jack & Built-In Microphone For IEMs
09/27/2025
Anonymous
Tuned like a blessing formy ears
Tuned like a blessing formy ears, Go for it
SIMGOT EW300 IEM
09/27/2025
Hari Charan
For the price... it's performs seriously... no joke
I use the moondrop free dsp mini with my hidizs mp145 planar iems and the response is amazing. Micro details are good mids are just right. The bass is tight. You'll love it.
MOONDROP FreeDSP Mini CS43198 Portable DAC & AMP - 3.5mm
09/26/2025
Abhishek Survase
First EarBuds Ever!
After searching for around 7 days, I finally ordered these. I have received them just an hour ago. Will update the review in few days. Initial impressions are too good.
MOONDROP SPACE TRAVEL 2 Ultra True Wireless Earbuds
09/25/2025
Devadath SL
THE BEST BUDGET IEM UPGRADE CABLE
The Audiocular C03 is an exceptional value for money upgrade cable in the market with a decent mike and in line controls along with amazing build quality thank you The Audio Store for fast Delivery
AUDIOCULAR C03 8-Core Silver-Plated Cable with 3.5mm Jack & Built-In Microphone For IEMs
09/22/2025
Subhansh Gupta
Best Hybrid
Good for Gaming and Multimedia both
SIMGOT EW200 IEM
09/22/2025
soli
smooth audio with wide and clear soundstage
these iems are so clear with wide soundstage and these are small and lightweight and sits flat in ear without building out if u use small tips according to your ear , this is my second iem the first one was kz edx and it was bass heavy after listening to this , i find out that this is what we call iem neutral soundstage. this dsp version allows you to set a fix eq to the dsp and now you can use same eq anywhere you want if it is laptop or tablet or pc without installing an eq software, the app also have community driven eq sharing where individuals can share there eqs you can pick eqs from there to suit your preference
TANCHJIM Bunny Type-C DSP Plug with Mic IEM
09/21/2025
Soumyadeep Mondal
Fabulous Purchase
It is really really good and the vocals clarity is much more higher than the traditional default 3.5mm ports of smartphones. I think, it is a great investment.
AUDIOCULAR SPARK Hi-Res Portable DAC Dongle CX31993 + MAX Amp - Black
09/21/2025
Vijay B. Chavan
Best product
Anc & Transparency mode nice, Battery hrs fullfill & Mic quality top notch,
Soft touch Key function.
KZ AN01 ANC Enabled True Wireless Adapter for IEMs
09/21/2025
Manish M
Best IEM under 5K
Best IEM under 5K. You'll be surprised by the value you're getting.
KEFINE Klean IEM
09/19/2025
STAY TUNED ON EVERY PLATFORM
Brand Warranty
100% Original products with brand warranty
7 Days Replacement
On all orders*
Fast & Free Shipping
Ships in 24 Hours*
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Reshav Sarkar
GREAT FOR EXPERIENCING
it was an amazing product, really help you know how different eartips change the sound
AUDIOCULAR SuperMix 6 Hybrid Premium Eartips for IEMs
Aditya Joshi
Dammn!! it's good!!
good sound and clear even without the dac and anything haven't tuned anything still clear sound!
TANCHJIM Bunny IEM With Mic - 3.5mm
Savitr Sastri
I really like the fit
I really like the fit. Not sure how much of a difference the steel makes though.