Hollyland Solidcom C1 Pro-4S
FEATURES
Solidcom C1 Pro is a full-duplex wireless intercom system ideal for large events such as television and film productions, church services, and live performances. It features an ENC (Environmental Noise Cancellation) system, a technology that isolates speech in crowded shooting environments, drastically reducing background noise. This ensures that all production team members interacting via the intercom can rely on clear and clean communication, even in particularly noisy areas. This active noise cancellation system uses a secondary omnidirectional microphone to capture background noise, in addition to the main electret directional microphone for speech pickup, which boasts a frequency response of 150 Hz to 7 kHz. Pressing a button on the main microphone activates the ENC environmental noise cancellation function. The background noise captured by the secondary microphone will be attenuated by this advanced signal processing algorithm by over 20 dB, making the voice much clearer.
Like Solidcom C1, the C1 Pro is also based on a system with 1 master headset and several slave headsets. It is possible to use 1 master headset and up to 7 slave headsets without the need for any hub or communication station. Solidcom C1 Pro-4S, in particular, is based on 1 master headset and 3 slave headsets. However, if many headsets are needed for different work teams, an optional hub can still be purchased to create two communication groups.
The line-of-sight range reaches 350m with audio signal transmitted on the 1.9 GHz GFSK band with DECT 6.0 encryption.
In this Pro version, the control layout has been redesigned with a new mute button in the center, which also functions as Push-to-Talk if held down. The volume buttons are now located above and below the mute button, while the A/B buttons used to switch between groups when using a hub are on the left and right sides. The headsets are powered by removable batteries: the maximum usage time on a full charge is 5-6 hours for master headsets and up to 10 hours for slave headsets. The charging time is 2.5 hours. The very low weight of approximately 170g each, including the battery, makes Solidcom C1 Pro extremely comfortable.
Each kit includes a charger, two batteries per headset, a carrying case, a USB-A to USB-C cable for firmware updates, and replacement earpads for each headset.
Main features
- Dual-mic ENC
- PTT function
- Wideband audio 150 Hz – 7 kHz
- Reliable 350m range
- DECT 6.0: improved stability
- Ultra-long runtime
- Increased portability and durability
- Ready to use
- Backward compatibility
- Dual A and B grouping
- Three-system cascade linking
- Announce function
SPECIFICATIONS
Technical characteristics
| Transmission range | 350 m LOS |
| Frequency band | 1.9 GHz (DECT) (varies by country and region) |
| Modulation mode | GFSK |
| RX sensitivity | < –90 dBm |
| Battery capacity | 700 mAh (2.66 Wh) |
| Operation time | Remote headset: > 10 hours (ENC ON) Master headset: > 5 hours (ENC ON with 5 remote headsets) Master headset: > 4 hours (ENC ON with 7 remote headsets) |
| Charging time | about 2.5 hours |
| Frequency response | ENC OFF: 150 Hz – 7 kHz (fluctuation range: ±6 dB) ENC ON: 150 Hz – 7 kHz (fluctuation range: ±10 dB) |
| SN ratio | 71 ± 2 dB @ 94 dBSPL, 1 kHz |
| Distortion | < 1% @ 94 dBSPL, 150 Hz – 7 kHz |
| Microphone type | electret |
| Input | > 115 dBSPL |
| Output | 94 ±3 dBSPL (@ 94 dBSPL, 1 kHz) |
| ENC | 20 ±2 dB |
| Net weight | about 170 g with the battery included for each wireless headset |
| Temperature range | 0 °C to 45 °C (working condition) –10 °C to 60 °C (storage condition) |
| Whats in the box... |
1 x master headset (with red nameplate), 3 x slave headset (with blue nameplate), charging case, DC adapter, 8 x battery, 4 x microphone cushion, 4 x over-ear leather cushion, 4 x on-ear foam cushion, USB-A to USB-C cable, storage case, user manual, warranty card |
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Shipments
Shipments
We ship throughout Italy and the European Union via selected express courier partners. All orders travel in special reinforced packaging and are covered by 100% included insurance to fully protect the value and integrity of professional equipment during transport.
Returns and refunds
Returns and refunds
You can request a return within 14 days of receiving the order. As these are professional hardware and devices, items must be returned completely intact, unused, unactivated, and sealed in their original packaging, complete with all accessories and manuals.
Frequently Asked Questions
Can't find the answer you're looking for? Our team of specialists is at your disposal for configurations or technical questions.
What are your shipping and delivery times?
What are your shipping and delivery times?
Orders are processed within 24/48 business hours. Delivery is made by insured express courier to guarantee maximum protection and safety even for the most delicate and expensive equipment.
Are the products covered by an official warranty?
Are the products covered by an official warranty?
Yes, all products are 100% original and covered by the official 24-month manufacturer's warranty. In addition, our technical department offers free after-sales support to assist you with the initial setup of your system.
How does the right of withdrawal work?
How does the right of withdrawal work?
If the hardware does not meet your expectations, you can return it within 14 days of receipt. The product must be returned intact, unused, and sealed in its original packaging, complete with all accessories and manuals.
What does it mean if a product is "Available on order"?
What does it mean if a product is "Available on order"?
Some complex professional audio systems or lighting equipment are ordered directly from official distributors based on customer requests. You can proceed with the purchase as normal and our team will immediately inform you of the exact arrival times at our warehouses.

