Ultrafine USB optical 2.4 g wireless mouse receiver, Windows wireless mouse (pink) Slim, ergonomically-designed 2.4 GHz wireless mouse ideal for home or office use 3 Buttons: Left, right and DPI switch (allows for adjustable movement sensitivity) 2.4GHz digital wireless transmission, operation distance is up to 10 meters 800 dpi/1600 dpi, cursor speed adjustable 2.4GHz digital wireless transmission, operation distance is up to 10 meters 800 dpi/1600 dpi, cursor speed adjustable Built-in mouse memory Powered by one AA battery (not included)