Hollyland Mars 300 PRO HDMI Loopout Wireless Video Transmitter/Receiver Enhanced

New open box BUILT-IN ANTENNAS: Built-In Antennas for Easy Setups, Efficient Shooting, and Different Shooting Applications 300ft 1080p Video & Audio Transmission: 300FT TRANSMISSION RANGE WITH 0.08S MINIMUM LATENCY. Up to 300ft Hassle-Free and Reliable Range for Wireless Video and Audio Transmission, 0.08S Lowest Achievable Latency for Real-Time Monitoring. SIDE OLED: Side OLED Provides Easy Access to Power Status, Channel Scan, and Other OLED Display Information for Both Vertical or Horizontal Installation Methods. REAL-TIME APP MONITORING: Supports up to 3 Phones / Tablets Real-Time Monitoring with Pro Monitor Features, such as Waveform, Focus Peaking, Zebra, ZOOM, 3D Luts, etc. THUMBWHEEL SWITCH MENU:Better Using Experience with the Multi-Functional Clickable Thumbwheel Switch