2.4G/2.4G+BT1+BT2 3rd simulated exam 2 models optional, with high-end PixArt 3065 IC design, office games do not get stuck. The mute switch, with a lifetime of 5 million times, is suitable for men and women office sports without disturbing people. Third speed 1600 moving speed adjustable, with a smooth 125Hz response speed. The appearance of the fully transparent mouse design is beautiful and fashionable, with a variety of colors to choose from. Built in 500mA rechargeable lithium battery, Type-C charging interface, with functions such as battery display light, energy-saving mode and low battery prompt. Read Less