Flight Adapter and USB-C to USB-A Adapter: Travel Audio Guide

By Professional Headphones & Luxury Earphones | Master & Dynamic | Published: 2026-10-13

Category: Buying Guides

Two small adapters solve most in-flight and laptop audio connection problems. Here is how to choose the right one for your headphones and devices.

Quick answer

If you want to use your own wireless headphones with an airplane seat's entertainment system, choose the Flight Adapter. If you need to connect a USB-C headphone or earphone to a USB-A port on a laptop, charger, or older device, choose the USB-C to USB-A Adapter. The two solve different problems, so check your seat jack and your device port before buying.

What each adapter actually does

The Flight Adapter is a small part designed for use with select Master & Dynamic wireless headphones, including MG20, MH40 wireless, MW50+, MW65, and MW75. It lets you plug those headphones into the two-prong or single 3.5 mm jack found on many in-flight entertainment systems. The USB-C to USB-A Adapter is a compact part for wireless headphones and earphones that connects a USB-C connection to a USB-A port. In practice, that means using a USB-C cable or device with an older USB-A socket on a computer, power brick, or car charger.

How to check your airplane seat and your device ports

Airline seat audio jacks vary. Some planes use a single 3.5 mm hole, while others use a two-prong airline jack. The Flight Adapter is made to bridge that gap for listed Master & Dynamic wireless models. Before you fly, look up your aircraft or check the seat arm for the jack type. For the USB-C to USB-A Adapter, look at the ports on your laptop, tablet, or charging brick. If your device has only USB-A and your headphone cable is USB-C, this adapter is the simple fix. If both ends already match, you do not need it.

Fit and compatibility details that matter

The Flight Adapter is listed for specific Master & Dynamic wireless headphones: MG20, MH40 wireless, MW50+, MW65, and MW75. It is not a universal adapter for every headphone brand or every wired model. The USB-C to USB-A Adapter is intended for wireless headphones and earphones, but it does not add audio processing or charging speed beyond the connection itself. Both parts come in Black. If your headphones are not on the Flight Adapter list, check the manufacturer's support page before assuming it will fit.

When to carry one, both, or neither

Carry the Flight Adapter if you plan to use your own headphones with in-flight entertainment and your headphones are on the compatible list. Carry the USB-C to USB-A Adapter if you often move between newer USB-C gear and older USB-A ports, such as a hotel desk lamp with a USB-A outlet or an older laptop. If you only use Bluetooth and never plug in, neither adapter is necessary. If you travel with both a laptop and a plane seat, the two adapters together cover most connection gaps without adding much bulk.

Decision rules for travel headphone adapters

Rule 1: Match the adapter to the jack, not the brand: Check whether your airplane seat has a single 3.5 mm jack or a two-prong airline jack. The Flight Adapter is built for the listed Master & Dynamic wireless models to work with in-flight systems. If your seat uses a standard single jack and your headphones already have a 3.5 mm cable, you may not need an adapter at all. Verify the seat jack type before you pack.
Rule 2: Use USB-C to USB-A only when the ports do not match: The USB-C to USB-A Adapter is for connecting a USB-C headphone or earphone to a USB-A port. If your device already has USB-C, or your cable already ends in USB-A, this adapter adds an unnecessary link. Buy it only if you regularly face a USB-A-only port. Check both ends of your cable and your device port.
Rule 3: Confirm your headphones are on the compatibility list: The Flight Adapter is listed for MG20, MH40 wireless, MW50+, MW65, and MW75. Other Master & Dynamic models or third-party headphones may not fit or function. If your model is not listed, contact support before buying. Compatibility is model-specific, not universal.
Rule 4: Carry the adapter only if you will actually plug in: If you rely on Bluetooth for all listening, neither adapter changes your experience. The Flight Adapter matters only when you want to use the seat's screen with your own headphones. The USB-C to USB-A Adapter matters only when you need a wired data or audio connection through an older port. Skip the adapter if your routine is fully wireless.

Product facts

Flight Adapter: Master & Dynamic Flight Adapter is a Part designed for use with wireless headphones and is listed for MG20, MH40 wireless, MW50+, MW65, and MW75. It lets you use those specific headphones with in-flight entertainment jacks, but it is not a universal adapter for other brands or models.
USB-C to USB-A Adapter: Master & Dynamic USB-C to USB-A Adapter is a compact part for wireless headphones and earphones that connects a USB-C connection to a USB-A port. It solves the mismatch between newer USB-C cables or devices and older USB-A ports on laptops, chargers, and other gear.

Who should buy which adapter

Best for

Travelers with MG20, MH40 wireless, MW50+, MW65, or MW75 who want to use in-flight entertainment with their own headphones
Anyone who needs to connect a USB-C headphone or earphone to a USB-A port on a laptop or charger

Not for

Headphones that are not on the Flight Adapter compatibility list
Devices that already have matching ports or cables without an adapter