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Hollyland Solidcom C1 Pro-4S Full-Duplex ENC Wireless Intercom System with 4 Headsets (1.9 GHz)

BH #HOSCC1P4S • MFR #SOLIDCOM C1 PRO-4S
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Hollyland Solidcom C1 Pro-4S Full-Duplex ENC Wireless Intercom System with 4 Headsets (1.9 GHz)
Key Features
  • Two-Mic Environmental Noise Cancellation
  • Reliable 1.9 GHz DECT 6.0 Technology
  • True-Wireless Headset, No Bodypack
  • Comfortable Single-Ear Headset Design
Featuring dual-mic Environmental Noise Cancellation (ENC) for use in loud environments, the Hollyland Solidcom C1 Pro-4S is a full-duplex wireless DECT intercom system engineered to provide clear audio and all-day wearing comfort in a true-wireless design with no bodypack or hub required. This configuration includes 4 single-sided headsets, 1 master and 3 remotes, along with rechargeable batteries, a charger, and accessories. The system transmits in the 1.9 GHz spectrum and uses proven DECT 6.0 technology to ensure secure and reliable transmission at a line-of-sight range of up to 1100'—making it well suited for a variety of applications including film/TV production, concerts, and live events.
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Hollyland SOLIDCOM C1 PRO Overview

Featuring dual-mic Environmental Noise Cancellation (ENC) for use in loud environments, the Hollyland Solidcom C1 Pro-4S is a full-duplex wireless DECT intercom system engineered to provide clear audio and all-day wearing comfort in a true-wireless design with no bodypack or hub required. This configuration includes 4 single-sided headsets, 1 master and 3 remotes, along with rechargeable batteries, a charger, and accessories. The system transmits in the 1.9 GHz spectrum and uses proven DECT 6.0 technology to ensure secure and reliable transmission at a line-of-sight range of up to 1100'—making it well suited for a variety of applications including film/TV production, concerts, and live events.
Dual-Mic Environmental Noise Cancellation
For clear communication in loud environments, engage the dual-mic ENC (Environmental Noise Cancellation) feature. The ENC algorithm combines the main directional microphone at the speaker's mouth with a secondary omnidirectional environmental mic on the earcup to cancel out unwanted background noise for more intelligible speech. The microphone's wide 150 Hz to 7 kHz frequency response ensures detailed voice capture to keep your team working efficiently.
LED shows that the system is working, with different colors representing different operating states. Blue LED is steady, indicating that ENC noise reduction is turned on. Green LED is steady, indicating that ENC noise reduction is turned off. Red LED is steady, indicating that the microphone is off.
True-Wireless Self-Contained Headset for 2-Way Communication
With no beltpack or base station, the C1 Pro offers a highly portable and hands-free coordinating experience for media production teams and others looking for real-time voice communication at line-of-sight distances up to 1100'. The Pro version offers increased portability and durability over the original, while the single-ear headset design is dust and water resistant and designed to provide a comfortable all-day wearing experience.
Easy to Use
A long press on the "A" button on the master and remote headsets is all it takes; the headsets pair up in about 10 seconds and you're good to go. The microphone boom on each headset rotates 360°, allowing for left or right orientation. Rotating the boom arm up or down conveniently mutes the mic when not in use. Alternatively, the mute button on the earcup can be set to mute or push to talk, depending on the user's preference. An LED indicates the system is working and warns you when the battery is low.
Rechargeable Batteries + Charging Station
Each headset runs on a single rechargeable battery. The amount of battery time in the master headset depends on the number of following headsets in use; with 1 to 5 remote headsets connected and the ENC features engaged, the battery will last for approximately 5 hours; with up to 7 following headsets in use, the battery life is 4 hours. Each remote headset will last for up to 10 hours on a single battery charge with the ENC engaged. Each battery fully recharges in 2.5 hours and a battery charging station, USB cable, and AC adapter are included.
Increased Portability & Durability for a Better Experience
The Solidcom C1 Pro headset is crafted using PC-ABS materials, making it incredibly lightweight-a mere 170g (6oz) with the battery included and super compact. The upgraded over-ear leather cushion better fits the human ear structure for added stability and comfort, perfect for anyone who works in challenging environments. Durable on-ear foam cushions are also provided to address different wearing preferences. Simply use them as needed and enjoy the experience of incredible portability and comfort without compromising quality.
Robust Wind Noise Removal
Troubled by wind noise in outdoor production environments? The Solidcom C1 Pro offers a versatile solution that prevents airflow from directly hitting the mic. With the Y5 felt paper designed for the main mic as the wind filter as well as the microphone cushion, the headset can reduce wind noise by 20.76dB. You can enjoy complete peace of mind in production environments where wind noise is a major challenge.
Expandable and Backwards Compatible
The Solidcom C1 Pro system allows you to link up to 7 remote headsets to the master headset without using a hub. The C1 Pro HUB Base (available separately) lets you use up to 8 remote headsets at once. The C1 Pro is backward-compatible with the Solidcom C1 system. Note that the ENC technology functions by removing the environmental noise at the speaker side. Whether you're wearing a C1 or a C1 Pro, the environmental noise you hear will be significantly reduced as long as the sound is coming from a C1 Pro headset.
UPC: 191460003097

Hollyland SOLIDCOM C1 PRO Specs

Key Specs
Users per System
4
Wireless Technology
Digital DECT (1.9 GHz)
Operating Range
1100' / 335.3 m
Inputs/Outputs
No
Earpiece Design
On-Ear (Supra-Aural) / Over-Ear (Circumaural)
Number of Earpieces
Single Earpiece (Left or Right Side)
System
Number of Included Headsets
4x Single-Sided Headset
Users per System
4
Wireless Connectivity
Wireless Technology
Digital DECT (1.9 GHz)
DECT Standard
6.0
Operating Range
1100' / 335.3 m
Max Transceivers per Band
8
Wireless Modulation
Analog: GFSK
Duplex Mode
Full-Duplex (FDX)
Approximate RF Sensitivity
-90 dBm
Mobile App Compatible
No
Base Station
Inputs/Outputs
No
Headphone
Earpiece Design
On-Ear (Supra-Aural) / Over-Ear (Circumaural)
Earpiece Connection / Wearing Style
Headband
Number of Earpieces
Single Earpiece (Left or Right Side)
Sound Field
Mono
Controls/Microphone Location
Controls: Adjustable Boom, Earpiece (Side Unspecified)
Microphone: Earpiece (Side Unspecified)
Frequency Response
150 Hz to 7 kHz
Total Harmonic Distortion (THD)
1%
Maximum Sound Pressure Level (SPL)
115 dB
SNR
Headphones:
>71 dB
Microphone
Type
Electret Condenser
Mic Boom Location
Interchangeable (Left or Right Side)
Pickup Pattern
Cardioid (Unidirectional)
Noise Cancelling
Yes
Maximum SPL
115 dB
Distortion
<1%
Wired Connectivity
Wired Audio Connector
No
Battery
Battery Type
Headset:
1 x 26650
Battery Chemistry
Headset:
Lithium-Ion
Capacity (mAh)
700 mAh
Runtime
Headset:
10 Hours
Physical
Environmental Resistance
No
Operating Conditions
32 to 77°F / 0 to 45°C
Storage Conditions
14 to 140°F / -10 to 60°C
Weight
6 oz / 170 g (with Batteries)
Packaging Info
Package Weight
6.075 lb
Box Dimensions (LxWxH)
15.2 x 9.4 x 7.9"

Hollyland SOLIDCOM C1 PRO Reviews

Solid Intercom System for Sure!

By Stephen
Rated 5 out of 5
Date: 2026-06-08

Purchased a set of these for an outdoor commencement ceremony for coms between camera ops and myself. I own a small production company, primarily offering live stream broadcasting for corporate, educational, etc... style events. The environment was rich with frequencies from all different sources, from thousands of cellular devices, wifi networks, wireless audio devices, and even a police standards building adjacent to the site with all sorts of frequency congestion. These worked through that environment without severe issues. With that said, I did have a few instances of drops that lasted a brief second or less, from 100+ ft away, with no real impact on communication between camera ops and myself. I would say that is some tough conditions and they powered through. I honestly was expecting worse performance under these conditions. The battery life is great on these. Plus Hollyland provides you with a charger and extra batteries. So if needed, you can swap out batteries. From buying them to testing them out, to covering the actual event, I didn't have to swap the batteries out at all. Build quality is great and the features are great too. Being able to mute by button press or by lifting up the mic is a nice feature. And they are comfortable. So comfortable, I'd forget wearing it. Great product and will be using these again in the future.

Rock-Solid Comms for Busy Production Days

By Jeremiah
Rated 5 out of 5
Date: 2025-12-10

I use the Hollyland Solidcom C1 Pro-8S on my commercial production sets, and it has completely leveled up our communication. Setup is super simple and fast, which is huge when you’re racing the clock on shoot days. The sound clarity is excellent, I can hear my team very clearly, even in noisy environments, and the full-duplex system makes conversations feel natural instead of “walkie-talkie choppy.” The headsets are comfortable enough to wear all day, and my crew picked up how to use them immediately with almost no instruction. If you run multi-camera or larger commercial shoots and need reliable, clear, hands-free communication, this system is absolutely worth it.

See any errors on this page?

Does this work in Argentina ? I will travel there ...

Does this work in Argentina ? I will travel there to film a miniseries so I want to buy 6 of these!
Asked by: WISNER
Hollyland does not recommend using the Hollyland Solidcom C1 Pro-4S Full-Duplex ENC Wireless Intercom System with 4 Headsets (1.9 GHz) outside of North America because it is made to work according to frequency laws within North America. However, some folks have successfully used this system outside of North America and its efficiency in your intended region would ultimately depend on that region's wireless frequency laws.
Answered by: David M
Date published: 2025-12-29

Will this work over walls / 2 floors?

Will this work over walls / 2 floors?
Asked by: Daniel
Sorry but not. The walls will influence the transmission of wireless signals greatly. The wall's obstruction will reduce the Solidcom C1 wireless signal and communication performance. Thus, we do not recommend the user use the intercom device between walls.
Answered by: Hollyland Product Expert
Date published: 2024-08-20

Can you add a Hub to the C1Pro-4S pack later?

Can you add a Hub to the C1Pro-4S pack later?
Asked by: Christian
Yes, the additional hub can be added to the C1Pro - 4S.
Answered by: Hollyland Product Expert
Date published: 2024-11-01

I see this comes with a barrel connector power ...

I see this comes with a barrel connector power adapter AND a USB cable? Which one powers the charging dock?
Asked by: Boston
The charging dock for the The Hollyland Solidcom C1 Pro-4S Full-Duplex ENC Wireless Intercom System with 4 Headsets (1.9 GHz), BH # HOSCC1P4, is powered by the AC adapter with the coaxial/barrel connector.
Answered by: Mark S
Date published: 2024-06-18

What is the connection for the antennas? Can I ...

What is the connection for the antennas? Can I purchase a cable to place them outside of a truck while the base station stays inside
Asked by: Peter
The Hollyland Solidcom C1 Pro-4S Full-Duplex ENC Wireless Intercom System with 4 Headsets (1.9 GHz) does not come with a Base Station.
Answered by: Alex D
Date published: 2024-05-08

I see this comes with both a barrel connector ...

I see this comes with both a barrel connector power adapter AND a USB cable. Can both be used to power the charging dock?
Asked by: Boston
Only the included AC power supply will charge the dock of the Hollyland Solidcom C1 Pro-4S Full-Duplex ENC Wireless Intercom System with 4 Headsets (1.9 GHz), BH # HOSCC1P4S.
Answered by: Mark S
Date published: 2024-06-18

can I buy a 4 pack and latter ad some more ...

can I buy a 4 pack and latter ad some more headsets ? will they all work together ?
Asked by: fernando
Yes, you can. The master headset support pairs with up to 7 remote headsets. Thus, the latter purchased remote headset can pair with the master headset if the firmware version and country version are the same. Also, if you are with the requirement to separate the users into A, and B different groups, UAC and cascade functions, the C1 Pro Hub is needed.
Answered by: Hollyland Product Expert
Date published: 2023-03-10

If I buy two separate Pro-4S system, can I use ...

If I buy two separate Pro-4S system, can I use them near each others? Or will there be some sort of interference?
Asked by: Aleksander
The potential for interference exists when using two Hollyland Solidcom C1 Pro-4S systems near each other, but by strategically placing and configuring the systems, you can minimize the risk and ensure smooth communication. Refer to the specific user manual for the most precise recommendations on using multiple systems and their features, such as channel management.
Answered by: Daniel O
Date published: 2025-08-06
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