The CHERRY MW 4500 is an ergonomic wireless mouse that aligns perfectly with your natural hand position thanks to its 45-degree inclination, relieving the strain on your wrist. The precision tracking sensor can be adjusted by three levels up to 1200 dpi. System requirements: - USB port Model for left-handed users available (product no. 4500469) Please note: Products purchased after 01/04/2019 come with an extended warranty of 3 years.