Please note that you may receive an additional developed mouse in the package, we hope you enjoy using it. We welcome your honest impressions to help us refine future products (if you receive it) Fashion Backlight Modes: This wireless backlit keyboard offers 8 color backlit modes: 7 single color, 1 breathing cycle backlight, meeting your personalized settings in different scenes and emotions. 3 adjustable brightness options for a comfortable experience Dual-Mode Connectivity: Experience our wireless computer keyboards, compatible with Windows & Mac! The plug-and-play 2.4G USB receiver provides stable connection to desktops/laptops, with a wireless range of up to 10 meters (33 feet). Weve also included a type C adapter and two Bluetooth pairing options, making it easy to meet your typing needs on mobile devices such as iPads and phones Whisper-Quiet Typing Experience: The quiet keyboard features a scissor structure (X-structure), which lowers key height and adjusts the force point f