Noppoo Choc Mini-2M 84 keys wireless/wired backlight keyboard USB NKRO Mechanical Gaming Keyboard Cherry MX Black Switches (Black Switches+Black body+Wired/wireless Dual-mode+Red Backlit) Humane dual-mode design,2.4G wireless mode and key lines separate wired mode Wired mode can realize full keyboard backlit, and can adjust the brightness by the combination key "FN+up/down" Key line separating wired mode, allowing Mini more portable,&lt;b&gt;and it can be compatible with mac system in wired mode Keyboard comes with pressurized light-emitting circuit, suitable for installing 1.8-2.4v colorful led lights Energy optimized wireless mode, two 7 battery standby approximately 2000 hours, and about 100 hours of work status