---
product_id: 618698059
title: "M15i Headphone Amplifier [MFi Certified] Portable USB DAC Amps with 4.4mm and 3.5mm Dual Outputs Supports PCM 768kHz/DSD512 High Resolution Lossless for Smartphones/PC/Laptops"
brand: "questyle"
price: "397113CFA"
currency: XOF
in_stock: true
url: https://www.desertcart.sn/products/618698059-m15i-headphone-amplifier-mfi-certified-portable-usb-dac-amps-4
store_origin: SN
region: Senegal
---

# Patented CMA tech: ultra-low distortion 0.0003% Supports PCM 768kHz/DSD512 lossless audio Dual outputs: 3.5mm & 4.4mm balanced for versatile use M15i Headphone Amplifier [MFi Certified] Portable USB DAC Amps with 4.4mm and 3.5mm Dual Outputs Supports PCM 768kHz/DSD512 High Resolution Lossless for Smartphones/PC/Laptops

**Brand:** questyle
**Price:** 397113CFA
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your sound game—because your ears deserve the best.

## Quick Answers

- **What is this?** M15i Headphone Amplifier [MFi Certified] Portable USB DAC Amps with 4.4mm and 3.5mm Dual Outputs Supports PCM 768kHz/DSD512 High Resolution Lossless for Smartphones/PC/Laptops by questyle
- **How much does it cost?** 397113CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/618698059-m15i-headphone-amplifier-mfi-certified-portable-usb-dac-amps-4)

## Best For

- questyle enthusiasts

## Why This Product

- Trusted questyle brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Premium Build:** Sleek metal design weighing just 100g, perfect for on-the-go professionals craving high-fidelity audio.
- • **Dual Output Flexibility:** Switch seamlessly between 3.5mm single-ended and 4.4mm balanced outputs to match your headphones and setup.
- • **Audiophile-Grade Clarity:** Experience pristine, lossless sound up to 768kHz/DSD512 for every note and nuance.
- • **Universal Device Compatibility:** Works effortlessly with iOS, Android 5.1+, Harmony OS, Windows 10+, and major laptops—your music, anytime, anywhere.
- • **Powerful Patented Amplification:** CMA technology delivers ultra-low distortion and wide impedance range (8-600Ω) for flawless headphone compatibility.

## Overview

The Questyle M15i is a portable, MFi-certified USB DAC headphone amplifier featuring patented Current Mode Amplifier technology for ultra-low distortion and wide impedance support. It delivers high-resolution lossless audio up to PCM 768kHz/DSD512, supports dual 3.5mm and 4.4mm outputs, and offers broad compatibility with smartphones, PCs, and laptops. Compact and crafted from metal, it’s designed for audiophiles and professionals seeking premium sound quality on the move.

## Description

M15i Headphone Amplifier [MFi Certified] Portable USB DAC Amps with 4.4mm and 3.5mm Dual Outputs Supports PCM 768kHz/DSD512 High Resolution Lossless for Smartphones/PC/Laptops

## Features

- [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.[Important] If there is a device incompatibility issue, please contact us and we can resolve it for you.
- [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.
- [Dual Outputs] ：The M15i, equipped with four CMA engines, supports 3.5mm single-ended and 4.4mm fully balanced output. It also features manual gain adjustment, allowing users to choose the gain mode according to personal preferences, headphone characteristics, or the audio system, making it suitable for a wide range of apps and devices.
- [Lossless Sound Processing] ：The M15i features with ESS flagship DAC ES9281AC, the Powerful M15i perfectly handles any signal formats up to PCM768kHz/32bit and DSD512.
- [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.If you have any questions, please contact us and we will solve them for you.
- 【Note】：When connecting to Lightning interface devices,you can purchase an additional Questyle LTC02 Lightning to Type-C adapter that has been officially certified by Apple MFi.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Wireless communication technology | RF |
| Included components | Cable |
| Age range (description) | Adult |
| Material | Metal |
| Specific uses for product | High-fidelity audio playback |
| Recommended uses for product | Music, Gaming, Calling |
| Compatible devices | Smartphones, Tablets, PCs, Laptops |
| Control type | Media Control |
| Cable feature | Detachable |
| Item weight | 0.1 Kilograms |
| Package type | FFP |
| Style | Minimalist |
| Control method | Touch |
| Number of items | 1 |
| Product Dimensions | 6.2 x 1.19 x 2.77 cm; 100 g |
| Item model number | M15i |
| Hardware Interface | USB |
| Material Type | Metal |
| Size | S |
| Item Weight | 100 g |

## Product Details

- **Brand:** QueStyle
- **Colour:** Black
- **Ear placement:** Over Ear
- **Form factor:** In Ear
- **Impedance:** 90 Ohms
- **Noise control:** None
- **Sensitivity:** 90 Ohm
- **Headphone jack:** USB Type-C
- **Model name:** M15i
- **Connectivity technology:** Wired

## Images

![M15i Headphone Amplifier [MFi Certified] Portable USB DAC Amps with 4.4mm and 3.5mm Dual Outputs Supports PCM 768kHz/DSD512 High Resolution Lossless for Smartphones/PC/Laptops - Image 1](https://m.media-amazon.com/images/I/61qWsqUbwNL.jpg)

## Questions & Answers

**Q: Would this be compatible with iPhone or Android device?**
A: Fullly Compatible with Devices & Music Platforms, support ios/mac OS/Android/Windows.Plug and Play, no need any driver or setting.

**Q: What should you do if the M15i suddenly stops working?**
A: If your M15i suddenly stops working, it may be because the firmware is missing. You can download the firmware to update the M15i.

**Q: Does this product work with micphone?**
A: Sorry, it can't work with micphone.

**Q: Does this product work for a car's 3.5mm headphone jack?**
A: If you want to use our M15i in your car,you need to buy a 3.5mm to 3.5mm OTG cables.

**Q: Does this product work with 250 ohm impedence headphone?**
A: Of course it dose,our M15i can work with 8Ω-600Ω  impedence headphone perfectly.

## Frequently Bought Together

- Questyle M15i Headphone Amplifier [MFi Certified] Portable USB DAC Amps with 4.4mm and 3.5mm Dual Outputs Supports PCM 768kHz/DSD512 High Resolution Lossless for Smartphones/PC/Laptops
- Questyle USB C DAC OTG Cable 1.2m,4ft Audio Adapter for iPhone 13/12/11/X/8/7/6/Plus, iPad Pro/Air/Mini, iOS15 to Type C Male Adaptor(Only fit for Amplifier M12i M15i)
- M15i Headphone Amps USB DAC Case

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**Shop now:** [https://www.desertcart.sn/products/618698059-m15i-headphone-amplifier-mfi-certified-portable-usb-dac-amps-4](https://www.desertcart.sn/products/618698059-m15i-headphone-amplifier-mfi-certified-portable-usb-dac-amps-4)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-18*