COCO NEW Form-Fitting Ergonomic Curved Wireless 2.4 G Optical Wireless Mouse (Green) Slim, ergonomically-designed 2.4 GHz wireless mouse ideal for home or office use Mouse is compatible with most laptop and desktop computers via USB receiver (packaged inside mouse's battery slot) Optical tracking technology works on many different surfaces | DPI switch allows for adjustable sensitivity | Powered by two AA batteries (not included) Package Contents: 1 x Wireless Mouse, 1 x USB Receiver