Hollyland Solidcom SE-4S Wireless 4-Person Noise Cancelling Headset Intercom

The Hollyland Solidcom SE-4S is a professional 4-person wireless intercom system tailored to give small video crews, technical directors, house of worship teams, and live event managers a highly cost-effective, hands-free talkback loop.

By integrating all wireless transceiver components directly into the headset frames, the system completely removes the need for traditional external belt-packs. This 4S configuration provides an instant, out-of-the-box communication network for a team of four to converse with advanced noise-canceling technology.

Core Audio & RF Engineering Features

• True Full-Duplex Architecture: Operates as a completely hands-free, open conversational channel. Unlike traditional walkie-talkies that block the line while a user holds a push-to-talk button, full-duplex technology lets all 4 team members speak and listen simultaneously, mimicking a natural face-to-face conversation.

• Dual-Mic Environmental Noise Cancellation (ENC): Built with a specialized dual-microphone array that isolates the user's voice while identifying and neutralizing up to 20dB of low-frequency ambient noise. Boasting a 71dB Signal-to-Noise Ratio (SNR), it ensures crystal-clear communication even on windy outdoor locations or next to roaring concert speaker stacks.

• 1,100ft Stable Line-of-Sight Range: Maintains a rock-solid, line-of-sight communication range of up to 1,100 feet (350 meters). An internal automatic frequency-tuning algorithm continuously scans the local environment for RF congestion and seamlessly shifts channels to protect against dropped words.

• Simple, Fast Muting Control: Designed with intuitive physical control logic to handle sudden on-set environment changes:

  • Flip-to-Mute Boom: Swinging the microphone arm vertically upward automatically cuts the mic line.

  • Latching Push-to-Talk (PTT) Button: Features a dedicated button on the earcup chassis, allowing users to toggle between a hands-free open mic or a quick press-to-talk mode.

Kit Architecture & Deployment

The Solidcom SE-4S system utilizes a decentralized Master-to-Remote topology:

• The Master Anchor: The kit includes 1 Master Headset and 3 Remote Headsets. The Master headset acts as the processing hub that blends the wireless signals. If the Master headset is turned off or out of range, the Remote headsets cannot communicate with one another.

• Factory Pre-Paired: The system arrives factory pre-paired. Operators simply insert the batteries, power on the units, and the encrypted communication network initializes automatically within seconds.

Technical Specifications Matrix

What is Included in the Box

• 1 × Master Headset (Single-Ear Over-Ear Profile)

• 3 × Remote Headsets (Single-Ear Over-Ear Profile)

• 8 × Rechargeable Lithium-Ion Battery Packs (Provides a full backup set for hot-swapping)

• 1 × Multi-Slot Battery Charging Base

• 1 × USB-A to USB-C Cable

• 1 × Ruggedized Hard Shell Carrying Case

• Numbered identification stickers

On-Set Power Rotation Tip: Because the Master Headset manages the signal matrix for all three remotes, its battery expends energy faster, yielding roughly 10 hours of runtime compared to the 12 hours provided by the Remote nodes. When assigning batteries from the charging dock during a mid-day turnaround, always place the freshest battery pack into the Master headset first to prevent an accidental communication blackout across the entire crew.