LOGITECH Silent Wireless Mouse M331 (Red)

Connection Type: 2.4GHz wireless connection.
Wireless
range: 10 meters.
Connect / Power: Yes, on/off switch.

Battery Details: 1 x AA.
DPI (Min/Max): 1000±.
Sensor
technology: Yes, 2D, mechanical.
Sensor resolution: 1000
dpi.
Scroll Wheel: Yes.
Number of buttons: 3 Standard and
Special Buttons: Middle click.