With ergonomic and plug play design, the keyboard/mouse is comfortable and convenient for you to use. Characterized by mute button and comfortable typing, this keyboard/mouse is very suitable for study or office use. Continuous power supply and automatic sleep mode enable it to improve battery life. It is constructed of ABS material. It has 7-light RGB effect, and brightness adjustable by 2 degrees. The length of this product is 25cm, the width is 8cm and the height is 2cm. The product is widely compatible with tablet, laptop, PC, etc. And it compatible with multiple systems. Item Name: Wireless Keyboard Material: ABS Style: 1: Keyboard, 2: Mouse (Optional) Keyboard Keys: 87 Mouse Buttons: 4 Buttons Language: Russian/English Interface: Micro USB Maximum DPI: 1600DPI Wifi Range: 10m Battery: Rechargeable Charging Voltage: 5V/1A Features: Ergonomic, Plug and Play, Widely Compatible Size Details: L: 25cm/9.84", W: 8cm/3.15", H: 2cm/0.79"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: Style 1: 1 x Wireless Keyboard or Style 2: 1 x Wireless Mouse