Brother Printers
WhiteBoard
IP PBXs
RL-9908 Two-Way Window Intercom System for Counter
Key Features
Brand: RL
Clear full-duplex two-way communication
Noise reduction for crystal-clear conversations
Hands-free operation for convenience
Adjustable inside and outside volume controls
Built-in high-sensitivity microphone and speaker
Easy plug-and-play installation
Stable wired connection for uninterrupted communication
Durable ABS construction
Suitable for banks, hospitals, offices, pharmacies, ticket counters, and reception areas
Operates on AC 110V–240V power supply
1 Year Warranty
RL-9908 Two-Way Window Intercom System for Counter Review
The RL-9908 Two-Way Window Intercom System for Counter is a professional, full-duplex communication solution engineered for front-line business desks where security glass, plastic shields, or physical partitions separate personnel from the public. It is widely deployed across banks, hospital reception zones, pharmacies, railway ticketing booths, and secure checkpoints to ensure clear voice projection without forcing personnel to compromise on safety or hygiene protocols.
Featuring a sleek, durable aluminum alloy main console paired with a compact, rugged customer-facing external station, the RL-9908 bridges the acoustic gap seamlessly in noisy, high-traffic commercial environments.
Full-Duplex Audio & Hardware Architecture
At the physical core of the RL-9908 Counter System is an integrated, specialized anti-side tone processing chip that works alongside microcomputer logic circuitry. This configuration enables true full-duplex dual-way communication, meaning both the service agent and the customer can talk and listen simultaneously without any awkward button-pressing or speech truncation.
The structural engineering setup features:
- Aluminum Alloy Main Station: A sturdy desktop base unit fitted with a highly flexible, adjustable gooseneck microphone for the agent.
- Slim External Speaker Box: A compact, low-profile customer-side unit designed to mount directly onto safety glass or window ledges using heavy-duty adhesive.
- High-Sensitivity Microphones: Both units boast matching -48dB omnidirectional capsule microphones, fine-tuned to capture vocal nuances effortlessly.
- Integrated Status Indicators: Clear visual LED lamps light up on the console faceplate to display operational status and active audio transmission tracks.
Technical Specifications Checklist
For procurement departments, facility management, and electrical deployment layouts, accurate technical metrics are essential. Below is the official system configuration matrix for the RL-9908:
| Feature | Specification Details |
|---|---|
| Product Model | RL-9908 (Dual-Way Counter Interphone) |
| Chassis Material | Brushed Aluminum Alloy (Main Unit) / ABS Plastic (Sub-Unit) |
| Audio Channel Type | Full Duplex (Simultaneous Talk & Listen) |
| Internal Mic Sensitivity | -48dB (Frequency Response: 20Hz – 20KHz) |
| External Mic Sensitivity | -48dB (Frequency Response: 20Hz – 16KHz) |
| Speaker Audio Output | 2W + 2W High-Power Drivers (100Hz – 15KHz) |
| Wired Interface Controls | Independent Inside & Outside Volume Knobs |
| Expansion Interface Port | 3.5mm Dedicated Audio Recording Output Jack |
| Power Input Requirements | AC 110–240V Input / Stable DC 9V, 0.5A Output |
| Main Station Dimensions | 158 mm x 87 mm x 46 mm |
Specialized Audio Engineering & Optimization Capabilities
The system stands out from standard paging hardware by prioritizing clear speech articulation through integrated, hardware-level voice management tools.
Automated Speech Recognition Logic
The internal processing chip automatically identifies and isolates speech patterns instantly. When background ambient noise is present, the system implements an auto-mute functionality when no voice signals are actively parsed, preventing annoying persistent static hiss from bleeding through the client speaker.
Independent Audio Mixing Level Controls
The main desktop faceplate features two distinct, analog tuning knobs. This allows the clerk to independently boost or cut the volume of the internal gooseneck speaker or the external window box, matching the acoustic properties of local surroundings without distorting audio quality.
Dedicated Audio Archiving Capabilities
A built-in 3.5mm auxiliary record output jack allows businesses to securely connect the intercom directly to security DVR units, analog voice loggers, or computer soundcards. This enables complete, multi-channel archiving of customer-staff interactions for liability, quality control, or regulatory auditing compliance.
Key Limitations to Consider Before Buying
While the RL-9908 delivers outstanding cost-to-performance utility, match its hardware constraints with your specific physical workspace layout:
- Fully Wired Interconnect System: The main console connects to the external window pod via a dedicated, fixed audio umbilical cable. This means you must route wires carefully through or under the counter window partition during setup.
- No Integrated Wireless Support: The system operates strictly via physical cable runs. It does not interface with Bluetooth wireless headsets, DECT communication setups, or local Wi-Fi office networks.
