Always pack a spare set of the Hollyland HL-ATN13 antennas for your Pyro H Rx or Tx. Being prepared for any eventuality is key to being a professional and having a spare set will put your mind (and your clients) at ease. These Cylindrical Antennas are designed for Pyro H Wireless Video Transmitter and Receiver which plugs into one of the SMA Male ports on the transmitter or receiver and supports the free 2.4GHz & 5GHz frequency band.