Bluetooth 5.4 USB Adapter Dongle for PC Laptop Windows Wireless Receiver BT Plug
5.4 Bluetooth, dual-mode and dual-channel. Compatible with Bluetooth 2.0, 3.0, 4.0, 5.0, 5.1 and 5.3 specifications. Support protocols: HFP/HSP (hands-free phone/headset) A2DP/ AVRCP (stereo music) HID/HOGP (keyboard and mouse) /ACC.