Plug and play: The keyboard and mouse share a dongle (located at the bottom of the mouse, just take it out and insert it into the computer, don’t lose the dongle). No driver required With backlight: The keyboard is equipped with an orange backlight, and does not use automatic sleep for 3 minutes. Mouse without backlight Rechargeable: The keyboard is equipped with a 1200 mAh lithium battery. The mouse is equipped with a 250 mAh lithium battery that can be charged via microUSB. Button mute: X structure button, all keyboard buttons are muted, mouse is muted, and easy to use at night. Note: Do not use fast charging. Please use the computer's USB charging or 5V1A power supply. (If fast charging is used, the battery will be damaged)