The Logitech RX700 Smart Cordless Optical Mouse reduces desktop clutter and installs effortlessly, thanks to its plug-and-play 27 MHz mini-receiver. The RX700's automatic standby and power down (on/off button) can extend the battery life for more than 8 months. The convenient indicator light alerts the user when the batteries are low.¤¤The RX700 mouse uses less power than other optical mice, and delivers ultra-smooth cursor control.¤¤The RX700 is a three-button cordless optical mouse, featuring a sleek body with flared sides for extra comfort and support. It's designed for use with either hand.