Enermax Briskie RF Wireless Keyboard and Mouse Combo, Black (KM001W) 2.4GHz RF wireless technology: up to 10 meters (30-Feet) operating distance with nano receiver Automatic Wireless Synchronization: instant connection; Power saving management: automatically turn to deep sleep mode when no use; Low battery indicator: remind you to change new batteries before it shuts off Spill-resistant design keyboard: avoided spill damage by accident and easily clean; 10 million keystroke lifetime: built to last for years; Smooth palm rest design: reducing typing stress while increasing comfort 2 level height adjustment: decide your perfect height for typing experience; volume control keys: easily to adjust the volume with one-touch control; Low-profile design: compact and comfortable For mouse, great grip design: fit your hand for excellent comfort and control; Adjustable resolution: (800/ 1000/ 1200 / 1600 dpi): customize it to match your needs Ambidextrous design: usable with both hands; snap-on receiver: easy to store for portability