The washable C Mouse Wireless has the look and feel of a standard mouse, but can be wiped or sprayed with a standard hospital approved surface disinfectant. It connects over dongle via 2.4 GHz. Its rechargeable lithium ion battery puts an end to replacing batteries. The hygienic 1000 DPI Optical Mouse has 2 buttons and a scroll wheel that users will feel immediately familiar with. The C Mouse is built to our specifcations and IP65 certifed and is the ideal mouse for medical settings with intense data entry routines, such as on hospital carts in 24 hour use.