A headset dongle is a small wired adapter that lets you connect a headset to your phone when the plug and port don't match. For most phones today, this means using a 3.5mm headset with a Lightning or USB-C port that lacks a traditional headphone jack.
What is a headset dongle?
A headset dongle is an adapter that sits between your headset's plug and your phone's port. It converts the audio signal so a wired headset with a 3.5mm jack can work with a phone that only has a Lightning or USB-C port. On Android devices that support USB host mode, a headset dongle can also connect a USB headset directly.
Why you need a headset dongle
The primary purpose of a headset dongle is to add a 3.5mm headset jack to a phone that has only Lightning or USB-C. This lets you use a wired headset with microphone for calls, music, and basic inline controls, as long as the adapter and headset are compatible. Without a dongle, you cannot plug traditional wired headphones into modern phones that have removed the headphone jack.
Types of headset dongles
There are two main types of headset dongles for phones: Lightning to 3.5mm headphone jack adapters for Lightning iPhone and iPad models, and USB-C to 3.5mm headphone jack adapters for USB-C phones such as iPhone 15 and later USB-C models. On Android devices with USB host mode support, you can also connect a USB headset directly or through a USB headset adapter.
While some headsets use a Bluetooth dongle for wireless connectivity. Similarly, a dongle for a mouse serves a different purpose entirely; a headset dongle is specifically an audio adapter.
How to use a headset dongle
Using a wired headset dongle is plug-and-play. No settings menu is required for the adapter itself.
- Insert the dongle into your phone's Lightning or USB-C port.
- Plug your 3.5mm headset into the dongle.
- Start playing audio or make a call; the headset should work immediately.
For Bluetooth accessories on iPhone, Apple documents going to Settings > Bluetooth, turning on Bluetooth, then tapping the accessory under My Devices when it appears. However, for a wired headset dongle, the adapter is a plug-in accessory rather than a menu setting.
It only states that devices in host mode are compatible with USB headsets that follow the USB headset specification.
Compatibility and limits
Apple support pages document Bluetooth pairing on iPhone but not a headset-dongle-specific software version requirement. Lightning adapters work with Lightning iPhones including iPhone 14 and earlier Lightning models. USB-C adapters work with iPhone 15 family and later USB-C iPhones. Lightning adapters are for Lightning iPhones and USB-C adapters are for USB-C iPhones; they are not interchangeable.
On Android, compatibility is limited to devices that implement host mode and USB headsets that follow the USB headset specification.
Frequently Asked Questions
What is a dongle for a headset?
It is an adapter that connects a headset to a phone port that does not match the headset plug, such as a 3.5mm headset to a Lightning or USB-C port.
Do I need a setting on iPhone?
Not for a wired dongle. Apple only documents Bluetooth pairing steps in Settings > Bluetooth; no extra audio menu is needed for the adapter itself.
Do I need a setting on Android?
The retrieved official Android source does not give a universal menu path. It only documents that USB headsets work on devices that implement host mode.
Are Lightning and USB-C dongles interchangeable?
No. They are not interchangeable.
Can I use a headset dongle with a USB headset on Android?
Yes, if your Android device supports USB host mode and the headset follows the USB headset specification. The dongle or direct USB connection will work in that case.
Related reading: What To Do When Dongle Is Not Working.
