sumee bluetooth 5.4 usb adapter for pc - wireless dongle transmitter/receiver, plug & play for windows 11/10/7, supports keyboard/mouse/headphones/speakers/game controller (br+edr+ble dual mode) bt5.4 is up for auction in Electronics. The current bid is $2.00, 80% below the $9.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.