UHD video: ST1 wireless HDMI transmitter and receiver support output resolution up to UHD 4K@30Hz; which creates a seamless video ecosystem that significantly improved coordination efficiency on the filmmaking set | Dual Bands & low latency: ST1 wireless hdmi transmitter and receiver uses a 2.4/5.0GHz dual-band for faster transmission and better resistance to interference; and enable you to experience the stability of smooth image and audio transmission up to 984ft/300m in open environments with a latency of less than 0.06s; and high-definition stable wireless transmission solution greatly enhances the visual experience and information dissemination efficiency of church activities | Dual HDMI output ports: you can connect two displays at the same time on the RX via the 2 HDMI out ports; loop out feature enables you to view the content on a nearby screen while simultaneously streaming to a remote display; providing real-time oversight and flexibility in your setup | 1TX up to 4 RX: one transmitter supports up to four receivers; note; the transmission distance is reduced by approximately 50M for each additional receiver in an open environment; multi-channel: 5G frequency bands can be freely selected in 9 frequency bands from 5.1 to 5.8 | 3 power supply methods: wireless video transmitter and receiver can be powered by a DC 9-16V port and NP-F battery(Battery not included); you can even power ST1 with a Type-C 5V interface; delivers even more convenience and flexibility for your shooting | 0.96'' OLED screen: the OLED screen provide easy access to the Wireless Video Transmission System's power status; channel scan result; video input; channel number; etc | APP monitoring: supports both Android and IOS system; your mobile device can also act as a receiver to view the real-time image on the device screen through the APP; you can observe the shooting scene through the app to adjust the camera's angle; exposure; focus to ensure that the shooting effect meets expectations