Bluetooth Rechargeable RGB Wireless Keyboard and Mouse Set

RGB Wireless Keyboard Mouse Combo Bluetooth Keyboard And Mouse Set Rechargeable Keyboard With Backlit Specifications Item name: RGB Bluetooth Keyboard And Mouse SetKeyboard Keys:87 keysMouse Buttons:4 ButtonsInterface: Micro USBThe Max DPI: 1600 DPIWiFi Range: 10MBattery: RechargeableCharging Voltage: 5V1A Q&A 1.How to turn on the backlight? Press ☀ once to turn on the backlight Press ☀ the button twice to switch the backlight mode to the breathing light mode Press ☀ three times to turn off the backlight 2.How to control the brightness of the backlight? Please hold" Fn " then press the "☀" to control the brightness 3.Why do I cannot change the color of the Backlight? You can press the "RGB" button to change the color, Colorful can be switched cyclically, and retain memory function 4.How do I wake the keyboard up when it enters the sleep mode You can hold any buttons for 3 seconds to wake it up