Logitech Unifying Wireless Receiver The device functions without issue, but pairing requires the dedicated software provided by Logitech. Please confirm the pairing method and compatible products yourself. There are minor stains and scratches. Please consider this a used item and only purchase if you understand this. Please refrain from purchasing if you are overly concerned about condition. ※ The item being sold is only the receiver shown in the image. No other accessories are included.