Product Description Color: Lithium battery white/black, Dry battery white/black 1. 【4-in-1 Design】 Keyboard, mouse, remote control, and touchpad are combined into one device, making it highly practical and efficient. 2. 【With Rechargeable Lithium Battery】 The keyboard can be charged using the included USB cable, making it convenient and environmentally friendly. The dry battery model requires 2 AAA batteries (not included). 3. 【Plug and Play within 10M】 Enjoy the full-size wireless keyboard with a skin-friendly, comfortable grip, and type instant messages without leaving your sofa. 4. 【High Compatibility】 The USB receiver is a standard HID device. It works well with Smart TVs, TV Boxes, XBOX, PCs running Windows 10/8/2000/XP/Vista/CE/7, iOS, Linux OS, etc. 5. 【RGB Backlit】 Features RGB backlighting. Simply hold "Fn" and press "F2" to easily change the color. The streamlined design allows for easy handling and use, with a highly sensitive touchpad featuring a 360-degree flip design.