Note：Mouse and keyboard need 1 AA battery each (battery is not included). Specification: Type: Wireless keyboard mouse combo Model: HK80 Color version:black keyboard keys: crater keys Working current: 3.0mAh Connection method: 2.4G wireless Operating Voltage: 1.5V wireless range: 10 m product weight: Keyboard is about 360g The mouse is about 50g Power supply: 1 AA battery each(battery is not included). Compatible systems: windows/Mac Features: 2.4GHz wireless transmission, stable and no delay, strong anti-interference ability. 104 keys compact design, not take up much space, convenient to carry. The FN group of multi-function shortcut keys allow you to do whatever you want in office work/game. 3-gear adjustable mouse DPI(1000/1600/2400DPI), accurate positioning, more freely control. Ergonomic design, the keyboard and mouse fit the hand curve, comfortable hand feeling, reduces fatigue. Feature 1: 2.4G Wireless Keyboard Feature 2: For PC Desktop Laptop Feature 3: 104 Keys Gaming Keyboard Feature 4: Black Keyboard Mouse Feature 5: Computer Keyboard with Mouse Feature 6: 2.4G USB Wireless Keyboard and Mouse Package includes: 1 * Wireless Keyboard 1 * Wireless Mouse 1 * Charging cable 1 * User manual