BT 5.4 Adapter USB BT 5.3 Dongle Plug and Play Wireless BT Transmitter Receiver for PC Mouse Keyboard Headphones Speakers. BT version: BT5.4 (LMP: 13. 1 x BT 5.4 Adapter. Due to different monitor settings and lighting conditions, the actual color of the item may vary slightly from the pictures. ).
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