7-button laser wireless mouse with excellent sensing accuracy on virtually all surfaces ,- The mouse pointer speed automatically adjusts to the mouse movements so that inconvenient switching of the mouse’s sensitivity is unnecessary ,- The laser sensor makes exact control of the cursor possible on almost any surface ,- Noiseless buttons for relaxed working without disturbing noise ,- Practical 4-way scroll wheel for vertical and horizontal scrolling ,- If the battery voltage is too low, the indicator light begins to flash which means that the batteries should be replaced ,- Separate on/off switch allows for energy-saving use of the mouse ,- Intelligent energy management activates standby mode when not in use ,- The ergonomic shape nestles comfortably in your right hand, allowing comfortable working for right-handed users ,- With software for reprogramming the buttons ,- Browser buttons provide quick access to the forward/back functions in the Web browser for easy navigation ,- Storable USB receiver can be transported inside the mouse to save space ,- Convenient size for relaxed working, even with larger hands , ,System Requirements: ,- Operating system: Windows 10/8/7/Vista/XP, MAC OS 10.10 or later , ,Note for Consumers: ,The software for reprogramming the key function can be obtained via a free download. You will find the link to this in the instruction manual