1.Connected with 1 transmitter only, transmitter can be changed as needed. 2.Recognized as HID keyboard device by computer, no need to install drivers and softwares 3.Data can be transmitted to Excel, Word, txt and other files(press transmit button of transmitter, which is recognized by the computer as keyboard input data and press enter, such as 12.34↙) 4.Suitable for any softwares which can receive keyboard signal