Silent Click Supports pairing of three devices Dual layout for Mac and Windows Premium Power-Saving Technology Multimedia Function  Keys Stable & Reliable two-mode connectivity: Designed with our ultra-stable two-mode technology, which suports wireless connectivity through 2.4Ghz and BT for up to 10 meters, as well as USB connectivity. Purely Silent Design Without Distraction: Designed with our premium silent switches, providing peace of mind while in use. Purely quiet and comfortable without distractions.