Make the most of smooth, efficient mouse use with thereliably impressive Logitech M235 Wireless Optical Mouse. Targeted tracking The Logitech M235 Wireless Optical Mouse offers no optical illusion when it comes to tracking thanks to advancedtechnology working on surfaces other mice can't handle. This mouse operates using a specular optical lens, meaning that it tracks ingreater detail and is more sensitive of detecting light off of surfaces foraccurate precision. Squeaky clean wireless The Logitech M235 reliesupon 2.4 GHz wireless connectivity for smooth performance when it comes to yourmouse usage. Keep your nano receiver plugged into your USB port at all times for instantconnectivity, without any issues. Brilliant battery This mouse does not take the Mickey when it comes to battery life, with one AAsized battery offering a year's battery life for effective use. You can also extend the life of your battery in the Logitech M235 thanks to an on/off switchand smart sleep mode, w