Home >Industry dynamics>Industry dynamics
What is Bluetooth dongle? What does it do?

What is Bluetooth dongle?

Bluetooth dongle is an external device, usually in the form of a USB plug or other interface, that enables devices without Bluetooth functionality to communicate wirelessly with Bluetooth devices. Its main function is to add Bluetooth functionality to the device, thereby enabling wireless connection and data transmission between devices.

What does a Bluetooth dongle do?

bluetooth  doongle-1.jpg

The functions of the Bluetooth dongle include but are not limited to the following aspects:


Bluetooth function extension: The Bluetooth dongle can add Bluetooth connectivity capabilities to devices that do not have Bluetooth functionality, allowing them to communicate with other Bluetooth devices. For example, connecting a Bluetooth dongle to a computer without Bluetooth functionality allows the computer to connect to Bluetooth devices such as a Bluetooth keyboard, mouse, and headphones.

Device interconnection: Through Bluetooth dongles, users can achieve wireless connections and data transmission between different types of devices. This connection method is commonly used to connect a Bluetooth dongle to a TV, audio system, or car audio system for audio transmission or data sharing with smartphones, tablets, and other devices via Bluetooth.

Enhanced device compatibility: Some older devices may not have built-in Bluetooth functionality, and Bluetooth dongles can provide these devices with modern connectivity options and enhance device compatibility and functionality.

Convenience: Bluetooth dongles are usually easy to install. Users only need to plug it into the corresponding interface of the device to quickly add Bluetooth functions without complicated installation steps or configuration processes.


In general, a Bluetooth dongle is a practical external device that adds Bluetooth connection capabilities to devices that do not have Bluetooth capabilities, enabling wireless communication and data transmission between devices, improving the functionality and convenience of the device.

Comparison of Bluetooth dongle and Bluetooth Module

Bluetooth dongles and Bluetooth modules are both related to Bluetooth technology, but they have some differences in working principles, application scenarios, costs, etc.


Here is a comparison of Bluetooth dongles and Bluetooth modules:


Features Bluetooth dongleBluetooth module
working principleAdd Bluetooth functionality to your device via an external connectionIntegrated directly into the device as part of the device
Application scenariosUsed to add Bluetooth connectivity to devices without Bluetooth functionalityFor the design and production of devices that require Bluetooth functionality
Connection methodConnect to the device via USB plug or other interfaceIntegrated directly into the device’s circuit board
costUsually low cost, suitable for scenarios where Bluetooth functionality needs to be temporarily addedThe cost is relatively high and suitable for scenarios where the device requires long-term Bluetooth functionality.
flexibilityCan be used on a variety of different types of equipment, easy to replace and upgradeIt needs to be considered and integrated into the equipment during the design stage, and it is not easy to replace and upgrade.
degree of customizationUsually does not provide customization options and has strong versatilityCan be customized according to equipment needs to meet the needs of different application scenarios
portabilityEasy to port to different devicesOnce integrated into a device, it is not easily portable to other devices.
Installation and configurationEasy installation, plug-in designNeed to be considered and configured during equipment design and production stages