BT 5.4 Adapter USB BT Adapter for PC Mouse Keyboard Headphones Speakers
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. If item is defective after 3 months, you can still send it back to us. ).