VoiceLink™ I Teacher Voice Lift System

PN: IR-100
1 channel infrared microphone pre-amp receiver that can be connected to any sound system via a 3.5 mm audio able





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VoiceLink™ I Teacher Voice Lift System Description

The VoiceLink™ I allows you to add a wireless microphone to your existing classroom sound amplification system. Simply connect the output port of the VoiceLink™ I  to an audio input port of the existing classroom system. A ceiling sensor connects to the VoiceLink™ I so that the microphone transmission is sent through the VoiceLink™ I  into the audio system and out the speakers.

With a VoiceLink™ I infrared wireless microphone system, the teacher’s voice will be clearly heard throughout the room with ease. And the auxiliary input on the front panel allows the input of a smart phone, computer, or DVD to supplement the instructional program.

VoiceLink™ I Teacher Voice Lift System Details


  • 1: Infrared microphone channel 2.08 mHz
  • 1: 3.5 mm line level auxiliary input
  • Line level output:
    • Balanced (3-pin Phoenix) connector
    • Unbalanced (RCA)
  • 2 external microphone sensor inputs, single RCA
  • Excellent for recording with an active board for internet podcasts
  • Easy to interface with projectors
  • Mounting brackets (included)
  • Ceiling/wall mount sensor with 50' cable


Weight 0.375 lbs
Dimensions 4.5 × 5 × 1 in
Receiver Input

Infrared FM


FM Wide-band

Reception Frequencies

Ch. A: 2.08 MHz

Infrared Wavelength

850 nm

Tone Signal

Ch. A: 32.768 kHz


50 μs

Frequency Response

50 Hz – 13 kHz, ±3 dB

S/N Ratio

>65 dB

Total Harmonic Distortion

<1 % @1 kHz

Nominal Deviation

±10 kHz

Maximum Deviation

±25 kHz

External Sensor Input

2, RCA

Aux Input

3.5 mm with gain control, front panel

Line Output

1 V, balanced line level, 3-pin Phoenix connector
Unbalanced line level RCA

Power Supply

12 VDC, 0.6 A, 7.2 W



VoiceLink™ I Teacher Voice Lift System Components

Classroom Component Layout

  • Sapphire (IRT-60) wireless pendant transmitter, a high-quality cardiod microphone with lanyard.
  • ICS-55 Ceiling Sensor gives 360-degree infrared coverage for optimal audio performance.
  • VoiceLink™ I receiver to support teacher microphone
  • SP-628 Ceiling Speakers (four shown) provide excellent quality voice reproduction.
  • SP-2000 Wall Mount Speakers (optional), allow for installation when ceiling is not accessible.

VoiceLink™ I Teacher Voice Lift System Downloads