Rii X8 Plus is an advanced 2.4GHz wireless mini QWERTY keyboard and TouchPad combo with USB interface receiver. Plug and play, simple and smooth. The mini keyboard ensures convenient typing, and you can control your devices from a distance. Features: Advanced Voice Input & 2.4GHz Wireless Connection: Rii X8 Plus supports voice input and 2.4GHz wireless connection, up to 10 meters wireless control. With USB receiver, plug and play. Compatible with PC, Notebook, Smart TV, Android TV Box, etc. Backlit Function: With backlit function, you can conveniently use the keyboard in the dark. Eight colors of backlight can be freely switched (Fn+Win). High Sensitive Touchpad: Easy to operate left mouse, right mouse and rolling screen. Supports touchpad DPI adjustable functions, better matching different sizes of screen. 71 Keys Keyboard: The mini keyboard ensures convenient typing with 71 keys, and you can control your devices from a distance. Also features auto sleep and auto wake mode. Scroll Wheel Function: The new design helps you scroll through long documents or web pages faster and easier, similar to using a mouse. Note: USB Dongle is located at the back of the keyboard. Specifications: Brand: Rii Model: X8 Plus Connection port: USB 2.0 or above Frequency: 2.4GHz Operating distance: Up to 10 meters / 30ft Transmission power: ±5db Battery: Built-in rechargeable 890mAh Li-ion battery (BL-5C) Operating voltage: 3.7V Operating current: <56mA Charging current: <300mA Sleep current: <1mA Color: Black Main Item Size: 13.8 * 9.6 * 2.1cm / 5.4 * 3.7 * 0.8in Main Item Weight: 112.5g / 3.9oz Package Size: 18.5 * 10.0 * 2.0cm / 7.3 * 3.9 * 0.8in Package Weight: 178g / 6.3oz Package List: 1 x Wireless Keyboard 1 x USB Wireless Receiver 1 x USB Charging Cable 1 x BL-5C Li-ion Battery 1 x English User Manual