Microsoft Wireless Keyboard 2000 (Mouse Included - Read Below note). Condition is "Used-Excellent". The keyboard has not been used much (maximum 10 times). The USB transmitter works for both keyboard and mouse. Please see my other post if interested in mechanical keyboard. Batteries not included so you will need AAA (keyboard) and AA batteries (Mouse) ***Note- The included mouse connects but doesn’t work well. There is serious lag between cursor movement on screen and mouse movement. And you have to hard press it on the top. Don’t know if you can repair it. So buy with that in mind.