1. Dual Mode Connection Powerful dual mode connection supports Wireless 2.4GHz and Bluetooth 5.0. You can connect up to three bluetooth devices and one wireless 2.4G device. Connect and switch devices easily with FN1/2/3/4 and the connection mode switch. Working distance up to 33ft (10m). Compatible with Windows, Mac OS, IOS and Android systems. Support PC, laptop, smartphone, tablet, iPhone, iPad, Macbook, iMac, etc. 2. Comfortable Scissor Switches It adopts the similar design of the scissorswitch keys as that of MacBook, which are fastresponding, silent and a comfortable tactile feedback. 3. Ergonomic 2Stage Feet Design This ergonomic keyboard is designed with twostage feet that provides three different typing angles, so you can choose the most comfortable one for yourself and reduce the discomfort in your wrists from longterm keyboard use. 4. Compact 99Key Layout Volume Roller The 99 keys compact layout saves space to the greatest extent while retaining the arrow keys and numeric keypad. It is also equipped with a volume roller and clear indicator lights, enhancing efficiency and convenience.