Hollyland Solidcom C1 Pro-4S Full-Duplex ENC Wireless Intercom System With 4 Headsets

The Hollyland Solidcom C1 Pro-4S is a full-duplex wireless intercom system designed to provide seamless, hands-free communication for film crews, broadcast teams, event coordinators, and production professionals. Operating on a stable 1.9 GHz DECT 6.0 frequency band, this system delivers crystal-clear audio, environmental noise cancellation (ENC), and instant, full-duplex transmission with no push-to-talk limitations—ensuring efficient coordination and precise teamwork on any set or event.

Full-Duplex, Real-Time Communication

Unlike traditional walkie-talkies or half-duplex systems, the Solidcom C1 Pro-4S allows all four users to communicate simultaneously in real time. There’s no need to press buttons or wait for a response—everyone can talk and listen freely, just like a natural in-person conversation. With a line-of-sight range of up to 1,100 feet (350 meters), this system provides reliable coverage across large sets, venues, or outdoor locations, keeping your crew connected and synchronized at all times.

• Communication Mode: Full-duplex, hands-free, two-way audio
• Range: Up to 1,100 ft (350 m) line-of-sight
• Users: 1 master headset + 3 remote headsets
• Frequency Band: 1.9 GHz DECT 6.0 — license-free and interference-resistant

Dual-Mic ENC Technology for Professional Clarity

The Solidcom C1 Pro-4S introduces dual-microphone Environmental Noise Cancellation (ENC) technology, a first in the Solidcom series. Each headset features two built-in microphones that work together to filter out background noise—such as wind, engines, or crowd chatter—while preserving the natural timbre of your voice. The result is clean, intelligible communication in even the noisiest production environments.

• Dual-Mic ENC: Removes unwanted background noise while enhancing vocal clarity
• Advanced Voice Algorithms: Ensure consistent, studio-quality audio transmission
• Ideal for: Film sets, live events, broadcast production, concerts, and sports coverage

Comfortable, Lightweight, and All-Day Wearable

Engineered for all-day comfort, each headset weighs just 170 grams (6 oz) and features soft memory foam earpads with breathable leatherette covering. The adjustable headband ensures a secure and ergonomic fit for prolonged wear, making the system ideal for long shooting days or extended live events. Both the microphone boom and earcup orientation are reversible, allowing users to wear the headset on either side.

• Weight: 170 g (6 oz) per headset
• Fit: Reversible microphone boom for left/right wearing
• Material: Memory foam earpads with soft leatherette
• Design: Sleek, low-profile design for comfort and discretion

Long Battery Life and Quick-Swap Power

Each headset is powered by a removable rechargeable lithium battery, providing up to 10 hours of runtime on the master headset and 8 hours on remote headsets. The included dual-bay charging station allows simultaneous charging of multiple batteries, ensuring uninterrupted operation throughout the workday. Hot-swappable battery design means you can easily switch batteries without shutting down communication—critical for live or continuous productions.

• Battery Life: Up to 10 hours (master) / 8 hours (remote)
• Hot-Swappable Batteries: Swap without interrupting communication
• Charging Options: Dual-bay dock, USB-C, or DC power
• Charging Time: Approximately 2.5 hours per battery

Secure, Interference-Free Transmission

Operating in the 1.9 GHz DECT band, the Solidcom C1 Pro-4S provides stable and secure digital communication with minimal interference, even in crowded environments. The system employs AES-128 encryption, ensuring all communications remain private and protected—ideal for professional sets, corporate events, and broadcast applications.

• Encryption: AES-128 secure digital transmission
• Frequency Stability: Automatic channel selection to avoid interference
• Regulatory Compliance: License-free operation in most regions

Expandable and Scalable System

The Solidcom C1 Pro series is fully expandable to accommodate larger teams and complex setups. Additional headsets can be easily paired to the existing base, allowing for scalable growth as production demands increase. The system also supports integration with wired intercom systems (via optional accessories), making it suitable for hybrid workflows.

• Expandable: Add more remote headsets to your existing system
• Integration: Compatible with wired intercom interfaces (via optional adapters)
• Flexible Deployment: Ideal for multi-camera setups, stage coordination, and live events

Designed for Modern Production Workflows

With its combination of clear full-duplex communication, ENC noise reduction, lightweight comfort, and robust signal range, the Hollyland Solidcom C1 Pro-4S offers production teams an unparalleled communication experience. Whether you’re managing a film set, directing a live event, or coordinating a multi-crew broadcast, this system ensures your team stays connected—clearly, instantly, and without distraction.

The Hollyland Solidcom C1 Pro-4S Full-Duplex ENC Wireless Intercom System (1.9 GHz) delivers everything professionals need: hands-free communication, noise-free clarity, long-range performance, and all-day reliability—making it the gold standard for modern production communication.

• Two-Mic Environmental Noise Cancellation
• Reliable 1.9 GHz DECT 6.0 Technology
• True-Wireless Headset, No Bodypack
• Comfortable Single-Ear Headset Design
• Wide Frequency Response for Clear Audio
• 1100′ 2-Way Operating Range
• Mute/PTT Button or Rotate Boom to Mute
• Includes Batteries and Charger
• Expandable System
• Backward Compatible with Solidcom C1