How to Use: Plug and Play Specification: Item Type: RGB Keyboard Material: ABS, Metal Colour: Black Keyboard Axes: Keyclick Connection Method: Wired USB Keyboard Lighting: Colorful RGB Number of Keys: 104 Keys Keyboard Cable Length: Approx. 1.5 meters/1.6yd Battery Capacity: Lithium Battery 4000mah (shipped with built in battery) Wireless Charging Output Power: 5W Support System: For XP, for Vista, for OS X, for win7, for win8, for win10 Package List: 1 x RGB Keyboard Note: Shipped with Built in BatteryRGB BACKLIT KEYBOARD: There are cool lighting effects, you can switch freely and choose a backlight you like according to your needs or preferences, and you will be more excited when playing games. ERGONOMIC DESIGN: Having high and low key layout, combined with ergonomic designs and comfortable streamline operation, using for a long time in office or games without getting tired. LONG SERVICE LIFE: Using classic 2 color injection molded keycaps, the keyboard can withstand high frequency percussion, the characters are wearable and not easy to fade, and the light transmittance is clearer. RETRACTABLE PHONE CHARGER: With simple pull and out concealed design, the use of space on the desktop increases, only need to pull out the wireless charging module from the keyboard when charging. KEYBOARD WITH WIRELESS PHONE CHARGER: The keyboard has 5W wireless charging, built in lithium battery 4000MAh, even if the keyboard is not plugged into the computer, which can directly charge the mobile phone wirelessly.