【Silent Responsive Keys】The responsive scissor key is a great design for quiet and comfortable typing, with no sticking and rattles. With the silent wireless mouse, you can enjoy the same click feel with 90% less noise. 【Reliable Connectivity】Keyboard and moue share the same USB dongle. No wires clutter, no interference and pairing trouble. Advanced 2.4GHz RF tech delivers a stable and lag-free connection. The encrypted USB dongle is a bonus for secure data transfer 【Smart Sleep Mode】After 15 mins of idle, this wireless keyboard and mouse will go to sleep for saving power. Powered by an AA and AAA battery (Not Included), battery life can reach up to 12 months. (Battery life may vary based on user and computing conditions) 【Freedom to Move Around】For home office, a 33-feet wireless range allows you to sit on your couch or bed to control your computer or smart TV. The ultra-slim keyboard and compact mouse are also great for mobile work—from office to cafe to an airport lounge 【Built for Productivity】This wireless keyboard mouse combo come with a number pad, 17 multimedia shortcut keys and 3 adjustable DPI (800/1200/1600), which can meet your needs for different activities and help improve efficiency 【Free Warranty】We offer a 24-month warranty for every keyboard and mouse wireless. Any questions, please feel free to contact us.