This product signal can not be output at the same time. If you need to output at the same time, optional
    (1) Asbestos SB-A21VA two-way audio and video switcher in and out
   (2) Asbestos 4-way manual audio and video distribution converter SB-104VA into four
   (3) Asbestos SB-S41VA four-way manual audio and video switcher in and out
    3. This product has been given an AV line, such as the need for better quality audio and video signal line, you can click
AV audio and video signal line AV signal extension line 1.5 m 3 m 5 m 10 m 15 m 20 m 2.00-19.00