Documentation

Audio Enhancement Handheld Student Microphone

Infrared Teacher Microphone System

The System

The Handheld Student Microphone creates excitement among students. It is a small-lightweight microphone designed especially for the classroom. It facilitates student to teacher and student to student communication and encourages classroom participation.

Technical Data

  • Microphone element:  Uni-directional Electret (cardioid)

  • External Controls:      

    • Power slide switch - On/Off
    • Power Push-To-Talk (PTT) momentary switch - On/Off                         

  • Internal Controls:       

    • Channel selector (1-4) switch, 10 position rotary switch
  • External connections: 
    • “AUDIO IN” - 3.5mm stereo jack - External audio line level input
    • “3.3V = IN” - Charging connector  
    • External Indicators:   
      • “BATT” LED indicates status
        • Battery power
          • Green – OK
          • Yellow – caution, low battery
          • Red – battery too low turning unit off
        • Channel select error – flashing green indicates invalid channel
      • “CHG” LED indicates status
        • Charging – Red, continuously lit
        • Charging complete – LED off
        • Charging fault – LED blinking                                      

  • IR Channel frequencies:

    • Ch. 1 – 2.3 MHZ; Ch. 2 – 2.8 MHZ;
    • Ch. 3 – 3.2 MHZ; Ch. 4 – 3.8 MHZ
  • Battery type:   1 – AA, NiMH or Alkaline
  • Battery life: 8 Hours 

  • Battery charge time: Maximum 8 hours

  • Battery Management:

    • Internal microprocessor monitors battery condition and prevents over-discharge and over-charging.

  • Dimensions:

    • 8.15 H x  1.61 W x  1.45 D in. (207 H x 41 W x 37 D mm)

  • Weight:      

    • 3.7 oz (105g)
  • Condition of installation: Indoor use

 
[ Back ]