Infrared Wireless Receiver System
IR-2000
Dual-channel design | Built-in feedback suppressor | RJ45 network port | Compatible with existing PA systems, purpose-built for classroom microphone upgrades.
Dual-Channel Design
Two wireless microphones can be used at once, making teacher-student interaction smoother across a wide range of teaching scenarios.
Two mics · Real-time interactionBuilt-in Feedback Suppressor
Professional anti-howling technology removes feedback noise so the sound stays clear and the listening experience stays a good one.
Howl-free · Pure soundRJ45 Network Transmission
A standard RJ45 interface supports up to four infrared sensors, covering areas of up to 400㎡.
Scalable · ReliableNo Radiation, High Privacy
Digital infrared technology generates no radio-frequency radiation harmful to the human body, and the signal is difficult to intercept.
Eco-friendly · SafeInfrared Wireless Receiver
IR-2000 · 1 unit
Handheld Wireless Microphone
IR-100H · 1 pc
Pen-Style Infrared Microphone
IR-500PT · 1 pc
External Infrared Sensor Unit
IR-RJ45 · 2 pcs
Dedicated Network T-Adapter
Expands to 4 sensors
More accessories available: IR-300H (large handheld), HM-102 (headset), TM-101 (lavalier) and others.
Receiver Specifications
Infrared Handheld Microphone (IR-100H)
Pen-Style Infrared Microphone (IR-500PT)
External Infrared Sensor Unit (IR-RJ45)
Digital Infrared Classroom Audio System Diagram
Connects to any third-party power amplifier · Works with existing PA systems
- Outstanding sound quality — digital infrared technology maintains broadcast-grade audio across the whole teaching area, with a 50Hz–20kHz frequency response.
- Immune to interference — adjacent classrooms can operate simultaneously without frequency crosstalk, and the system is unaffected by radio signals or high-frequency lighting.
- Ready to use — digital infrared microphones need no pairing: switch on and teach.
- Hands-free — wear the microphone around the neck or clip it on, so teachers can move freely and stay focused on the lesson.
- A microphone upgrade path — designed specifically to upgrade existing audio systems, with full compatibility.
- Hygiene with no admin burden — the one-teacher-one-microphone model means each device has a single user, which is cleaner and cuts management costs.
- Flexible expansion
- Flexible expansion — supports up to four infrared sensors, covering spaces of up to 400㎡.
- Light and compact — the pen microphone weighs just 67g and the handheld 120g, comfortable to wear for long sessions.
Step into a Radiation-Free, Interference-Free Infrared Classroom
The IR-2000 makes classroom audio clearer, healthier and easier to run. One teacher, one microphone: better hygiene, and hands completely free.
* Haixin Electronics provides complete infrared sound reinforcement system integration, including solution design, on-site commissioning and after-sales support.