The ETH-TALLY-LINK-V2-X4 8-Channel Tally Box System with Four Tally Lights from SKAARHOJ allows you to take full control of your live video production. The system includes an 8-channel tally box and four tally lights. Each light features two LEDs, a green/red one facing the camera operator and a larger red one facing the presenter. The system offers both program and preview tally, and the lights can be connected one by one or in a daisy chain. An RJ45 port on both the box and the light connects the two.