Logitech H800 wireless headset. Connects via dedicated USB receiver and Bluetooth, switchable with a button. The ear pads have deteriorated and were discarded, and the right speaker doesn't work, so it's being sold as junk. Left speaker, microphone, and wireless connection have been tested and confirmed to work. The discarded ear pads are being sold cheaply, so those with repair skills might be able to make good use of them. Instant purchase is welcome. I am also selling many other unwanted items. Please take a look! #iikuniUsedGoods