100% brand new and high quality. 3 buttons, including scroll wheel, left button, right button It adopts ergonomic design which is suitable for most people's hand feeling and ensures you cannot feel fatigued after working for a long time. Compatible for Windows 98 / xP / Vista / 7 / 8 or latest. Intelligent connectivity, no need to code, plug and play. Type: Wired Operation e: Opto-electronic Style: Mini Number of Rollers: 1 el Number: Game Mouse Power Type: Rechargeable Hand Orientation: Both Hands DPI: 1200 Key number: 3 Connection way: USB cable Application: Desktop,Laptop,For Video Game ,For Home Use colour:black Material:ABS Size:9cm x 5cm x 3cm (L*W*H) Package Contents: 1*Computer MouseOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.