Additional wireless transmitter for the HL-Syscom 421S AV Transmission Systems. Dedicated tally output port that supports optional tally lights 2-Pin power input for alternate DC power options Up to 1080p60 transmitter system 1800ft (548.64m) line-of-sight transmission Passes control and tally over LAN OLED display - Confirms the resolution transmission channel signal strength and battery power Contents:1 x Transmitter 5 x 5GHz Antenna 1 x 5.7-Inch Magic Arm 1 x OTG Cable 1 x DC Conversion Cable 1 x RS485/RS422 Interface Cable 1 x Heavy duty utility case