Logitech M235 Wireless Mouse : Its advanced 2.4 GHz wireless technology and optical tracking offer you freedom of movement and high reliability Long battery life : Can last for a whole year without having to change the batteries Hand-friendly ergonomic design : Soft rubber grip and the smooth scroll wheel of this computer mouse gives more comfort and freedom of movement USB receiver : Remove the bottom cover of the wireless mouse to access the USB receiver of the device Versatile : Compatible with Windows, Mac and other devices Logitech M235 Wireless Mouse : Its advanced 2.4 GHz wireless technology and optical tracking offer you freedom of movement and high reliability Note : In case of Wireless mouse, the USB receiver will be provided inside or along with the mouse Long battery life : Can last for a whole year without having to change the batteries Hand-friendly ergonomic design : Soft rubber grip and the smooth scroll wheel of this computer mouse gives more comfort and freedom of movement USB receiver : Remove the bottom cover of the wireless mouse to access the USB receiver of the device