Bluetooth connection, save a USB port for the device. (Except for the PC side, the PC side link requires an additional Bluetooth adapter. Not included) Comfortable typing feeling, scissor foot design elements, to provide a comfortable feeling when each key is touched, the floating cap Chocolate can effectively reduce work noise. Provides rechargeable batteries, can be used up to 6 months, gift battery charger. Portable design, compact size can be put in the bag anytime, anywhere, where to go and where to carry. Universally compatible, whether Windows, MacOS, Android system equipment, can be used. Package information: 1 Bluetooth keyboard. 2 rechargeable batteries (included in the keyboard). 1 mobile phone holder. 1 USB battery charger.