Hollyland Mars 400S [Official] Wireless SDI/HDMI Video Transmitter and Receiver for DSLR Camera, 400ft Long Range 0.1s Low Latency 1080P HD Video WIFI Transmission System by Amazon.co.uk

• \u3010MULTIPLE PLATFORMS MONITORING\u3011: Support 1 transmitter with 2 receivers, or 1 transmitter + 1 receiver+ 4 iOS or Android smartphones and tablets. The transmission range is up to 400ft.

• \u3010SDI&HDMI&OLED DISPLAY SCREEN\u3011: Support both SDI&HDMI on the transmitter and the receiver. Be different from Mars 300, The Mars 400S has creative OLED screen, so you can check out all device status and control the system with displayed information on the screen.

• \u3010DUAL POWER SUPPLY OPTIONS\u3011: Support 12V DC power supply and NPF series of batteries. The system also comes with a low-battery warning indicator.

• \u3010CHANNEL SCAN & EASY TO UPGRADE\u3011: Automatically scan the current environment to identify channels with or without inteference.support USB firmware upgrade remotely on both the transmitter and the receiver.

• \u3010EASY TO UPDATE AND SCAN\u3011: Video transmission to an OLED screen, press your finger on the \u201cmenu\u201d button, effective demand matching, analyze and then automatically scan the current environment to identify channels with or without interference. Support USB-OTG firmware upgrade on transmitter and receiver.