This Bluetooth 5.4 Adapter contains a low power chip, bringing low latency and mini but powerful Bluetooth applications. It can be used as a receiver or transmitter between two devices with Bluetooth function. The adapter supports simultaneous connection of multiple devices and operates with Windows 7, 8.1, 10, and 11. It also supports USB 2.0/3.0 interfaces and has a transmission distance of 20 meters. The adapter is compatible with Bluetooth 2.0, 3.0, 4.0, 5.0, 5.1, and 5.3, and supports protocols such as A2DP, HSP, AVRCP, HID, and ACC.