Since its invention by Ericsson in 1994, Bluetooth has transformed the way devices communicate wirelessly. Early versions like 블루투스 1.0 그리고 1.1 introduced basic wireless connectivity, while 블루투스 2.0 + EDR enabled faster data rates and better audio transmission. 와 함께 블루투스 3.0 + HS, high-speed data became possible, 그리고 블루투스 4.0 marked the arrival of Bluetooth 저 에너지 (ble) for power-sensitive IoT devices.

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The milestone came with 블루투스 5.0, which doubled the speed, extended the range up to 300 미터, and increased broadcast capacity eightfold. Later versions such as 블루투스 5.1 그리고 5.2 added precise location features and enhanced audio support through LE Audio.

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Modern Bluetooth radio modules are built on these advancements, supporting both Classic Bluetooth (for audio streaming and voice) and BLE (for low-energy IoT applications). Their evolution ensures broader compatibility, stronger performance, and more diverse use cases across industries.