Hollyland Pyro S 4K HDMI/SDI Wireless Video Transmission System (1TX + 1RX)

The Hollyland Pyro S 4K HDMI/SDI Wireless Video Transmission System (1TX + 1RX) is a complete, out-of-the-box dual-band wireless monitoring kit designed for independent filmmakers, commercial crews, and live event broadcasters.

Representing a major evolutionary leap over Hollyland's legacy Mars series, this system includes one transmitter (TX) and one receiver (RX). It introduces multi-receiver multiplexing, true 4K support over HDMI, robust 3G-SDI hardware connectivity, and an advanced wireless backend built to survive heavy RF interference.

Core RF & Video Engineering Features

• Auto Dual-Band Hopping (2.4 GHz & 5.8 GHz): Powered by proprietary Auto Frequency Hopping (AFH) technology, the Pyro S transmits data across both frequency bands at the exact same time. If the system detects local Wi-Fi congestion or wireless electronic interference, it dynamically routes data to the cleaner band without a single dropped frame or tear.

• 1-to-4 Broadcast Multiplexing: While this baseline kit comes as a 1TX + 1RX system, the transmitter is engineered to scale. A single Pyro S transmitter can push real-time video to four dedicated hardware receivers simultaneously. Alternatively, it can split the workload by streaming to 2 hardware receivers while concurrently casting via Wi-Fi to 2 mobile devices running the HollyView monitoring app.

• Dual Interface Support (HDMI + 3G-SDI): Cross-compatible across mirrorless camera setups, pro-tier cinema rigs, and studio hardware.

  • Transmitter (TX): Includes 1× HDMI Input, 1× HDMI Loop-Out, and 1× 3G-SDI Input.

  • Receiver (RX): Includes 1× HDMI Output and 1× 3G-SDI Output.

• 4K UHD High-Bitrate Monitoring: The system handles video pass-through and transmission up to 4K at 30fps over HDMI at a high 12 Mbps bitrate. This ensures clean, sharp color rendering and fine edge contrast for pull-focus evaluation.

• Plug-and-Play UVC Streaming: The receiver features a built-in USB-C port that supports standard UVC (USB Video Class). By plugging a cable straight from the receiver into a computer, it acts as a driverless webcam link—allowing you to feed your live camera view natively into OBS Studio, Zoom, vMix, or YouTube Live without needing an external capture card.

Technical Specifications Matrix

Dual Optimization Modes

Accessible via the interactive OLED side panels, users can toggle the system's processing priority to match the exact demands of their set:

1. Smooth Mode: The hardware dynamically manages the transmission bitrate to lock latency to its absolute minimum (50ms). This mode is optimized for roving Focus Pullers / 1st ACs where tracking instant movement is essential to hit marks.

2. HD Mode: Prioritizes absolute image quality, locking the wireless stream to its maximum 12 Mbps threshold. This eliminates compression artifacts and banding, making it ideal for the Director's Monitor, client village, or makeup monitors where exact fine details matter.

What is Included in the Box

• 1 × Pyro S 4K Wireless Video Transmitter (Red Accents)

• 1 × Pyro S 4K Wireless Video Receiver (Blue Accents)

• 7 × Paddle Antennas (4 for active mount, 2 for the third RX/TX auxiliary slots, 1 spare)

• 1 × 1/4"-20 Cold Shoe Mount Adapter

• 1 × Right-Angle DC Power Adapter Cable

• 1 × Quick Start Guide

On-Set Identification & Spectrum Tip: To make multi-device setups foolproof on dark sets, Hollyland codes the hardware with colored accents: Red branding indicates the Transmitter (TX), while Blue branding indicates the Receiver (RX). If you run into signal issues in a crowded convention center or arena, boot up the Receiver's internal menu to run a local frequency channel scan. The system will map out the local 2.4 GHz and 5.8 GHz noise levels visually, letting you select and lock into the cleanest available channel block manually.