此无线鼠标/键盘在制作时无须对原有鼠标的外观及内部电路做任何改动,使用起来符合操作习惯,方便可靠,非常适合爱好者自制。其工作原理是利用编译码电路MC145026／MC145027和射频发射/接收模块TDA1808/TDA1809互相配合,可以在10~120m范围内灵活操纵鼠标。-This wireless mouse/keyboard are not required in the production of the original appearance of the mouse and the internal circuitry to make any changes, to use for your operating habits, convenient and reliable, ideal for lovers made. Its working principle is the use of coding and decoding circuit MC145026/MC145027 and RF transmitter/receiver module TDA1808/TDA1809 complement each other in the range of 10 ~ 120m and flexible manipulation of the mouse.