This is a Lenovo Mini Wireless Laser Mouse (Model: MORFFHL). A compact, ambidextrous wireless pointer with a High Definition laser tracking and 4-way scrolling. It comes with its dongle and is operated with (2) AA batteries (Not Included). I have tested it and found it to be fully functional. 

I’m not the previous owner of this item, therefore I’m describing what I have observed and/or tested. Please ask any questions you may have PRIOR to purchasing. I take pride in prompt responses and solid communication overall, both pre and post sale.