?Completely wireless with Bluetooth(Rechargeable)?NOTE?Bluetooth Requirement of devices: Bluetooth 4.0 or above; System Requirement: MacOS 10.10 or Above. Please check before purchase. ?Function Across Three Devices - Realize quick and smooth switch between 3 devices effortless by pressing a single button. ?Fantastic for Apple User - Compatible with iMac, MacBook Pro/Air, iPhone, iPad with 16 specific Apple shortcuts. ?Aesthetic Elegant Look - A color scheme matches most Apple products. ?Scissor Mechanism Beneath Each Key - Allows for increased stability. Low profile provides a comfortable and precise typing experience.