With a unique optical engine and 230W UHB lamp, the CP-X445 series achieves a brightness of 3, 200 ANSI lumens. It will project large-screen images that are clear and easy to see, even in large rooms or in bright environments. Additionally, 4X wave sound speaker system (four built in 3W speakers), provides sufficient sound in classrooms without the need for additional external speakers.Furthermore, the CP-X445 series is equipped with a LAN control function, allowing users to control and efficiently operate a group of projectors on TCP/IP network. Lastly, the CP-X445 series features full connectivity with a DVI-D interface, and is compatible with the RGB Input 2 system, Video Input 3 system, and a wide variety of other input signals. Soft Case Not Included.