BROADER THUMB REST DESIGNUpgraded much wider thumb rest area, designed for better support to the whole palm and fingers, reduces the pressure and tension brought by long-time work to the hand, and improves the efficiency of work RECHARGEABLE & POWER INDICATORBuilt-in large-capacity rechargeable Lithium polymer battery, which can be used for several months after a single charge. This wireless computer mouse is equipped with 3 power indicator lights, and the innovative design can clearly display the power source, saying goodbye to power failure Silent Click(left and right button) Silent clicking laptop mouse for left and right button fits the circumstance for using the mouse in public, such as library, dormitory, office and so on, and apart from blue light indication during recharging and light off after full recharge, this design results worry-free for disturbing others 2.4GHz Nano USB MouseStable connection up to 10-meter working distance and just simply insert the