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RL-9908 Two-Way Window Intercom System for Counter
Key Features
Brand: RL
Full duplex two-way intercom for natural dialogue
Advanced DSP chip with noise suppression for clarity
Anti-interference technology for noisy environments
Independent volume adjustment on both sides
Slim, durable design for modern counter installation
1 Year Warranty
RL-9909 Two-Way Window Intercom System for Counter Review
The RL-9909 Two-Way Window Intercom System for Counter is a high-performance, full-duplex communication device engineered for professional desks where security glazing, acoustic barriers, or hygienic shields isolate staff from consumers. It is widely deployed across banks, hospital registration booths, railway ticket counters, and secure receptions to deliver smooth, crystal-clear voice transmission without breaking security protocols.
Built with a sleek aluminum alloy master console and an ultra-slim customer-side speaker pod, the RL-9909 allows natural, low-fatigue dialogue in noisy commercial environments.
Full-Duplex Audio & Hardware Architecture
The RL-9909 uses an advanced microcomputer chip architecture featuring specialized auto-identification voice circuitry. This hardware setup permits true full-duplex two-way voice communication, meaning the client and staff member can converse simultaneously without audio dropouts or manual push-to-talk button restrictions.
The structural engineering setup features:
- Aluminum Alloy Main Console: A heavy-duty, metallic desktop base station for staff, equipped with a flexible, high-sensitivity metal gooseneck microphone.
- Slim Fit Extension Speaker: A low-profile, discrete external module designed to mount directly onto window frames or security barriers with included adhesive.
- Acoustic Signal Track Processing: A dedicated visual LED indicator panel lights up to show active track directions and communication readiness.
- High-Gain Omnidirectional Mics: Both stations feature premium -48dB capsule microphones optimized for vocal frequencies.
Technical Specifications Checklist
For administrative procurement, facilities maintenance, and electronic integration plans, accurate metrics are critical. Below is the verified hardware configuration for the RL-9909 system:
| Feature | Specification Details |
|---|---|
| Product Model | RL-9909 (Wired Counter Intercom System) |
| Console Housing | Heavy-duty Aluminum Alloy Shell |
| Communication Mode | Full Duplex (Simultaneous Auto-Handsfree) |
| Audio Processing Engine | Microcomputer Speech Recognition Chip |
| Inside Gooseneck Mic | -48dB ± 2dB (Frequency Response: 20Hz – 20KHz) |
| Outside Extension Mic | -48dB ± 2dB (Frequency Response: 20Hz – 16KHz) |
| Driver Power Output | 2W Main Station / 2W Sub-Station Drivers |
| Acoustic Spectrum range | 100Hz – 15KHz |
| Expansion Recording Port | 3.5mm Dedicated Dual-Way Audio Recording Jack |
| Operating Voltage | DC 9V / 0.5A (Universal AC 110–240V Input Adapter) |
| Main Station Dimensions | 158 mm x 87 mm x 46 mm |
Specialized Audio Engineering & Operations
The system addresses the typical shortcomings of standard intercom hardware by introducing adaptive acoustic processing tools directly on the main interface.
Anti-Interference & Noise Suppression
The embedded logic chip recognizes background ambient noise and isolates human voice structures instantly. The unit includes an automated noise-suppression loop that silences standard persistent hiss when no active speech signals are present.
Dual-Zone Volume Engineering
The top faceplate of the main box includes two distinct, variable volume knobs. This gives the operator full independent control to attenuate or boost the inner gooseneck speaker or the outer customer pod independently, tailoring output to immediate environmental noise shifts.
Compliance Logging Architecture
Equipped with an analytical 3.5mm analog recording output port, the system allows direct connection to external voice loggers, computer soundcards, or corporate security DVR setups. It outputs both sides of the dialogue onto a single channel for streamlined security archiving and quality audits.
