When charging your mouse, you should turned on the mouse to be able to charge it, if its off then you can not charge your mouse Product parameters Model: PM6 Product size: 120*78*38mm Connection method: 2.4G wireless USB header processing: nickel plating Product weight: 95g Interface type: USB 1.1/2.0 Charging voltage range: 5V Battery type: 14500 lithium battery Battery model: comes with charging Working method: Photoelectric Operating distance: 10m Battery capacity: 800mAh Mouse color: black, red Maximum speed: 14 inches / sec Number of buttons: 6 Resolution value: 800/1200/1600DPI adjustable Roller direction: two-way wheel USB rate of return: 250Hz With/without decorative lights: colorful breathing lights Mat material: UPE System support: windows and MAC OS Wire specifications: 3.4*30MM USB with MINI head charging cable Low battery prompt: no prompt Charging time: 2 to 3 hours