Wireless mouse and keyboard set: 2.4GHz wireless technology, ultra-long distance transmission(10m/33fts), stable without delay. Plug and play, just insert the USB receiver (stored inside at the back of the mouse) into your computer then can use the keyboard and mouse instantly Full size keyboard and mouse: 104 key standard US layout (QWERTY) designed wireless keyboard with number area; 26-key without conflict; 12 multimedia hotkeys combined help you to play music, browse the web, etc. extremely convenient and efficient (Note: the multimedia shortcuts are not compatible with Mac system)