Logicool M650 Wireless Mouse and Keyboard Set Both were used with Bluetooth connection. - Brand: Logicool - Model: M650 - Connection Type: Bluetooth. USB receiver also included. - Brand: ELECOM - Model: TK-FBM120 - Connection Type: Bluetooth. No USB receiver. There are no particularly large scratches, but there is some wear and tear. I experienced no problems during my use, but this is a used item, so please refrain from purchasing if you are sensitive to such things. Thank you for looking.