Backward compatible with Bluetooth 2.1/3.0/4.0/5.0/5.1/5.3/5.4. Bluetooth 6.0 USB Adapter for PC - Realtek Chip, Dual Mode (EDR+BLE), Driver-Free for Win11/10/8.1, Support 7 Devices, HiFi Audio, 20m Range - Compatible with Keyboard/Mouse/Headset/Speaker.
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