Questyle

Questyle M15i Electro Purple Headphone Amplifier Portable USB C DAC Amps

Name: Questyle M15i Electro Purple Headphone Amplifier Portable USB C DAC Amps
Brand: Questyle
SKU: B0GBXPF4F7
Price: 126.86 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-23

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$126.86

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🛒 See live eBay price Also on Amazon — View Current Price → Compare to similar audio & midi

*Price sourced from Amazon.com. Last updated 2026-08-26. Price and availability subject to change.

Bottom line: The Questyle M15i Electro Purple Headphone Amplifier Portable USB C DAC Amps is a specs-and-price decision rather than a crowd-consensus one in the audio & midi category, priced around $126.86. Check the specification table above against one or two close alternatives — on price and spec fit, not on star ratings.

Pros & Cons

Pros

✓ Backed by Questyle's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

The ultimate tool for EDM, J-Pop, and ACG enthusiasts! Leveraging the transient response of the Current Mode Amplifier, it delivers sharp, impactful beats and melodies that transcend dimensions, all while maintaining a neutral tonal foundation. It faithfully reproduces the thrilling dynamics of epic OSTs while preserving the authentic texture of the music, offering an immersive rhythmic feast on the go

SpecPicks Verdict

SpecPicks scored Questyle M15i Electro Purple Headphone Amplifier Portable USB C DAC… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the audio & midi category. Questyle's audio & midi lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for audio & midi of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Key Features

[Flagship Chips] ：The M15i utilizes the updated ESS flagship USB DAC decoding chip, the ES9281AC, supporting up to PCM768 and DSD512 decoding capabilities. Enjoy high-resolution, high-quality music with rich detail, pure sound quality, and a wide soundstage, as if you were at a live performance.
[Electronic Music / ACG Custom Tuning] ： The ultimate tool for EDM, J-Pop, and ACG enthusiasts! Leveraging the transient response of the Current Mode Amplifier, it delivers sharp, impactful beats and melodies that transcend dimensions, all while maintaining a neutral tonal foundation. It faithfully reproduces the thrilling dynamics of epic OSTs while preserving the authentic texture of the music, offering an immersive rhythmic feast on the go.
[MFi certified] ：The "i" suffix in M15i indicates that the M15i is MFi certified. MFi certification means perfect support for iPhone/iPad and the ios ecosystem, meeting stringent comprehensive requirements for external device power consumption and compatibility, and also avoiding the risk of damage to the phone and system caused by using incompatible USB devices.
[Patented AMP design] ：Questyle patented Current Mode Amplifier “CMA” technology (Global PCT Patent Number: US 9,614,483 B2), enables the small device unbeatable performance: low power consumption and heat generation; large bandwidth up to 1MHz, ultra low distortion to 0.0003% and wide range impedance adaptive 8ohm ~ 600ohm, it works with most of the headphones in the market perfectly.
[Widely Compatibility] ：Workable well with computers, Smartphones, and Laptops.High compatibility with iOS, Harmony OS, Android versions 5.1+ and Windows 10+ version, enables you enjoy your lossless Music with your preferred device anytime, anywhere.
[What You Get] : M15i USB DAC Headphone Amp x1, Type-C to Type-C cable x1,Type-C to USB-A Converter x1, user manual x1, and friendly customer service.[Important] If there is a device incompatibility issue, please contact us and we can resolve it for you.Any problems with the M15i,we will try our best to help you.

Full Specifications

Brand	Questyle
Color	Purple
Model Name	M15i
Unit Count	1 Count
Connectivity	USB-C
Model Number	M15i
Compatibility	Android, iOS
Noise Control	None
Built-In Media	Cable
Control Method	App
Earpiece Shape	In-Ear
Headphone Jack	3.5 mm Jack
Headphones Jack	3.5 mm Jack
Number of Items	1
Audio Driver Type	Dynamic Driver
Compatible Devices	Smartphones, PC, Laptops
Enclosure Material	Metal
Additional Features	Lightweight
Warranty Description	1 year warranty
Age Range Description	Adult

Ready to buy?

Questyle M15i Electro Purple Headphone Amplifier Portable USB C DAC Amps is sold on the used and vintage market, where eBay carries the live inventory — Amazon does not stock this part. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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*Price sourced from Amazon.com. Last updated 2026-08-26. Price and availability subject to change.