#Ergonomic #Wireless #Mouse #1600DPI #USB #Rechargeable #2.4GHz #Optical #Vertical #Mice Features: 1:Vertical healthy mouse 2.4GHz Wireless Connectivity (USB receiver ),Suitable for PC Laptop Desktop Computer With USB port. 2:Ergonomic designed to remit and prevent carpal tunnel syndrome. 3:Optical laser technology for precise control,2.4GHz digital wireless transmission, operation distance is up to 10 meters. 4.Rechargeable wireless type. Built-in rechargeable battery,very convenient to use, dispense with frequent battery replacement trouble, comes with a usb cable. 5:L/R mouse buttons, 2 thumb buttons, and a clickable scroll wheel , dpi button.