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infrared microphone/transmitters
The infrared microphone/transmitter is comprised of a microphone input, signal processing
circuits and several emitting diodes that transmit the vocal signal to the sensor.
The microphone/transmitter can be the Crescent or Pendant style worn around neck, or
Body-Pack clipped to your waist with your choice of microphone (Lapel, Collar, or Head-
band). The rechargeable batteries will provide 6–8 hours of service per charge. Place the
microphone/transmitter in the charger for overnight charge and it will be ready for another
day’s use.
The drop-in battery chargers are specifically designed to recharge NiMH batteries at an opti-
mum rate for maximum operating capacity and extended service life. Charger will automati-
cally start charging the batteries upon insertion and will shift to a maintenance charge when
batteries are fully charged.
(IRT-30) crescent transmitter
The Sapphire’s vocal clarity is unsurpassed. Its
high level output is achieved by the unidirectional
(Cardioid) microphone and a unique free air
suspension system. With a built-in breath filter, the
Sapphire can function as a pass around hand mic.
The strategic alignment of the emitting diodes
assures reliable connectivity throughout the room
without static or drop out.
With a tap on the power button, the microphone
is muted for private conversation—tap again to
restore to normal operation. The auxiliary input
allows wireless playback of your iPod™ through
the Sapphire. A three position slide switch pro-
vides selection of low, med, or high microphone
sensitivity.
features
• Elegant design
• Only 1.4 oz. including bat-
tery
• Long life “Lithium ion”
battery
• Rechargeable via USB cable
to computer
• Battery level indicator –
Back light under power
switch
• Momentary mute button,
backlight blinks in mute
mode
• Push “on/off ” power
• Channel “A” or “B” select-
able
• Three level microphone vol-
ume switch (low, medium,
high)
• Auxiliary input (3.5mm)
• Wear with a lanyard or slide
directly on neckline collar
(IRT-55) sapphire transmitter
