ADVANCED 2.4G WIRLESS:Delivers the reliability and speed of a corded connection that allows you to work with your PC from a distance. One tiny Unifying receiver (USB 2.0) connects both the keyboard and mouse to your computer. | DESIGN: Environmentally friendly ABS material. 3 adjustable DPI, set the track you need. ltra-thin mouse built-in MINI receiver, travel tourism is not easy to lose. District 2 full keyboard design, simple and compact, saving desk space. | MUTE: Sensitive mouse click, the sound is smaller. Key comfortable and smooth, softly typing and let you focus on your work and not disturb the people around you.The chocolate-like keycap gives you an excellent feel. | WARMLY NOTE: 1. Not fully compatible with Mac System,hotkey functions can not be fully applied. 2.The keyboard needs 2 x AA battery and mouse needs 2 x AAA battery (not included). | BRILLIANT CUSTOMER SERVICE: 24 hours stand-by professional customer service promise to give you a satisfied solution and every products with 12-Months warranty.