SKU: 39290244735

Questyle M18i Portable Bluetooth DAC/AMP

Sale price$19665.00 Regular price$21850.00
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Description

Questyle M18i Portable Bluetooth DAC/AMPQuestyle M18i The Questyle M18i is a high resolution, portable USB DAC and headphone amplifier featuring Bluetooth 5. 4, dual ESS ES9219Q chips, and signature Current Mode Amplification. It supports wired wireless lossless audio, 3. 5mm 4. 4mm outputs, and features an OLED screen for monitoring in a compact CNC aluminum body. Get this amazing DAC now from the official dealer of Questyle in Bangladesh, Gears for Ears today with an official 1 year

Questyle M18i

The Questyle M18i is a high-resolution, portable USB DAC and headphone amplifier featuring Bluetooth 5.4, dual ESS ES9219Q chips, and signature Current Mode Amplification. It supports wired/wireless lossless audio, 3.5mm/4.4mm outputs, and features an OLED screen for monitoring in a compact CNC aluminum body. Get this amazing DAC now from the official dealer of Questyle in Bangladesh, Gears for Ears today with an official 1 year warranty. 

Technology Without Boundaries

The M18i contains four sets of SiP modules that use Questyle’s patented Current
Mode Amplification, providing both powerful drive and delicate timbre. The M18i also features ESS’s flagship ES9219Q Combo DAC, a dual- DAC mono design, and a TTA (Three-Tier Architecture) DAC framework. Together, these provide performance equivalent to large desktop devices, while raising the bar for portable sound quality.

The Questyle M18i features wired USB and dual-mode lossless Bluetooth connectivity, powered by a 16-core XMOS316 USB platform for seamless compatibility with smartphones, PCs, and gaming consoles.

As the first M-series product with Qualcomm Snapdragon Sound, the M18i also introduces intelligent battery management, a high-definition OLED screen, and a microphone for clear voice calls. Offering exceptional Hi-Fi audio via Bluetooth or USB, the M18i delivers a premium listening experience.

Apple MFi Certified for Guaranteed Performance and Compatbility

The "i" in M15i indicates that it has been certified by Apple's MFi. MFi certification ensures perfect support for iPhone/iPad and seamless integration into the Apple ecosystem. It complies with Apple's stringent requirements for external devices in terms of power consumption and compatibility, avoiding the risk of damage to phones and systems from arbitrary device pairings.

Patented SiP Current Mode Amplifier

The Questyle M18i prioritizes resolving trade-offs between size, power efficiency, and audio performance in portable, battery-powered devices. It features two patented quad-core Current Mode Amplifier (CMA) SiP modules, delivering powerful drive with delicate timbre and achieving ultra-low distortion of 0.0002%.

By combining CMA technology with TOREX’s high-efficiency power management, the M18i ensures low power consumption without compromising performance, setting a new benchmark for the Questyle M series.

Sound Quality

A low noise floor is essential for capturing the intricate details of an audio track, allowing you to experience true high fidelity. The M18i excels in this regard, delivering exceptional accuracy with an ultra-low noise floor of -130dB, as verified in a controlled laboratory testing environment.

Full Compatibility for True Lossless Enjoyment

The M18i supports lossless Bluetooth and USB DAC dual-mode switching, making it convenient for users to choose freely. It is equipped with the latest generation of Qualcomm Snapdragon Sound technology and Bluetooth 5.4.

3.5mm and 4.4mm Dual Ports with Gain Adjustment

The M18i, equipped with (x4) current mode engines, supports 3.5mm single-ended and 4.4mm fully balanced output modes. It also features manual gain adjustment, allowing users to choose the gain mode according to personal preferences, headphone characteristics, or the audio system.

Management System

Mobile Mode

In Mobile Mode, the USB audio port is used exclusively for data transmission and does not draw power from the connected mobile device. The M18i operates entirely on its internal battery. Similarly, in Bluetooth Mode, the device relies solely on its battery for power, ensuring no external power source is required.

PC Mode

In PC Mode, the USB audio port serves a dual purpose: transmitting data and supplying power. It charges the M18i’s battery while simultaneously powering the system.

When connected to a USB host device with a current limit, the M18i intelligently manages power distribution. It prioritizes the system’s operation by ensuring stable performance, then dynamically adjusts the battery charging current based on the system’s workload and power availability. This ensures optimal performance without overloading the USB host.

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

  • 4.4mm: 28mW @ 300 ohms

Frequency Response & THD

  • Frequency Response: ±0.1dB (20Hz-20kHz); ±2dB (20Hz-80kHz)
  • THD+N: 0.0002%
  • DAC: (2x) ESS ES9219Q
Specifations
  • Dual flagship ES9219Q DACs
  • Equipped with Bluetooth 5.4
  • 3.5mm and 4.4mm outputs for versatile headphone compatibility
  • Ultra-low noise floor of -130dB for a pure background and real sound
  • Supports up to 384kHz (16/24/32-bit) PCM, delivering rich, high-fidelity audio
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 39290244735

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4.2 ★★★★★
Based on 22 reviews
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Mike from San Diego
Houston, US
★★★★★ 5
I love it!
Color: Black, Size: Rechargeable
This thing works great! It holds a charge for a long time. I love that it has different attachments. I use it mainly for mixing powder into my drinks. It is very powerful. The speed is adjustable too. It feels good to hold too. It lights up when you squeeze the trigger and when it starts losing charge, the light bar gets shorter. I highly recommend it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
K
Verified Purchase
KindleDiva
Lexington, US
★★★★★ 5
Perfect all-around frother, stand keeps it nice and neat on the counter within easy reach.
Color: Black, Size: Rechargeable
Rechargeable, lightweight, variable speeds and optional whisks all make this the perfect item for your kitchen. You can quickly froth milk for your coffees, whip a small batch of whip cream, and even make mug cakes with the hook attachment. The price is very compatible with the competitors, but the ease of use makes this a top choice. The variable speeds makes it much better to control than the push button ones. When you let go of the pressure switch it turns off, no need for a dedicated on-off switch. Having the pressure switch on the top makes it extremely easy to use! It fits very comfortably in the hand and with the metal stand, looks quite nice on the counter, ready to use at any time. I highly recommend this InstaWhisk!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
A
Verified Purchase
Amazon Customer
Fort Morgan, US
★★★★★ 5
Great product from a great company
Color: Black, Size: Rechargeable
This product works very well. There are several other whips to use also. I absolutely love the cream it makes and that is important so I can enjoy my morning coffee. I used this whisk for quite a while then all of a sudden it stopped working. I wrote to the company to explain. A few days later they sent me a beans new whisk. GREAT item and great company to work with.
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Reviewed in the United States on May 23, 2026
K
Verified Purchase
kg
Chelsea, US
★★★★★ 4
Great Frother - almost too powerful
Color: Black, Size: Rechargeable
I’ve been using the Tyohur InstaWhisk milk frother for a while now, and overall I really like it—but I wouldn’t quite give it 5 stars, and honestly it’s because it might be a little too powerful for its own good. First, the positives: this frother does an amazing job. The single-button control is super easy to use, and I love that you can adjust the speed just by how much pressure you apply. It feels very intuitive, and you can really dial in the exact texture you want. Whether I’m making a latte or mixing something thicker like a protein drink, it handles everything smoothly. The performance is seriously impressive. On the lower speeds, it creates nice, silky foam, and when you turn it up, it’s incredibly fast—like café-quality foam in seconds. High-speed frothers like this are designed to create rich foam very quickly, and this one definitely delivers on that promise That said, the power is also what knocks it down a star for me. If you’re not careful (especially when using higher speeds), it can splash pretty easily. The product description says it’s designed to prevent mess with stable low-RPM operation, and that’s true if you stay on the lower settings—but once you ramp it up, you really need to keep the whisk fully submerged or start slow, or it can send milk flying out of the container
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Reviewed in the United States on May 23, 2026
G
Verified Purchase
GN Phx
Lake Worth, US
★★★★★ 5
Great frother and well built
Color: Black, Size: Rechargeable
I don’t usually write reviews, but since I’ve been helped by so many reviews from others, I wanted to share my thoughts on the InstaWhisk Milk Frother. This is a great frother. It really whips cream into a tasty, rich froth. My wife and I have tried cheaper battery-operated frothers in the past, and while they worked fine at first, they didn’t last very long. The InstaWhisk feels well built and works great. Pro tip: The frother may be a little too powerful at normal speed, so you might need to lightly “feather” the power button to keep the liquid from overflowing the cup. Once you get used to it, it works really well.
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Reviewed in the United States on June 6, 2026

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