Viper v2pro does not need to buy a base, because it comes with a USB charging port, you can plug directly into the computer to charge. However, the purchase of a base can provide users with a more convenient way to charge, but also make the mouse more stable and improve the use experience. Therefore, whether you need to buy a base depends on your individual needs and budget. If the budget is sufficient, it is recommended to buy a base to improve the stability and use experience of the mouse.