Multimedia hotkeysMultimedia hotkeys give you quick access to functions like media player, homepage, volume adjustment and more.Reliable 2.4G wireless transmissionReliable 2.4G wireless transmission results in less interference from other wireless, Bluetooth and Wi-Fi devices.Adjustable High-definition Tracking EngineSelect low DPI for accuracy or high DPI for fast movement. You can instantly switch between 500 and 1000 DPI.Spill-resistant designSpill-resistant keyboard design, so you do not have to worry about the keyboard malfunctioning after accidental spills.Long battery lifeWith Rapoo's latest energy saving technology, you can use your keyboard for up to 24 months and the mouse for 12 months without power interruption.