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TeachLogic's Sapphire Transmitter with Microphone and Lithium-Ion Battery is a lightweight classroom microphone and comes with a rechargeable lithium-ion battery. It can be worn with a lanyard or clipped directly to your neckline collar. It has high level output, reliable connectivity and great definition. With a built-in breath filter, the Sapphire can function as a pass-around hand microphone. With a tap on the power button, the microphone mutes for private conversation-tap again to restore to normal operation. The auxiliary input allows wireless playback of your iPod. A three-position slide switch provides selection of low, medium, or high microphone volume levels.
Long life lithium-ion battery
Rechargeable via micro USB cable
Battery level indicator, back light under power switch
Momentary mute button, backlight blinks in mute mode
Push "on/off" power
Channel A or B selectable
Three level microphone volume switch (low, medium, high)
Auxiliary input (3.5mm)
Low profile clip for mounting
Wear with a lanyard or directly to neckline collar
In the Box
TeachLogic Sapphire Transmitter with Microphone and Lithium-Ion Battery
Rechargeable Lithium-Ion Battery
Limited 5-Year Warranty
Table of Contents
2.08 MHz and 2.54 MHz
Channel A or B, Field Switchable
Frequency: 32.768 KHz
60' (18.28 m) line of sight, 1,500 ft² (139.35 m²)
Flashing red: very low battery
3.7V, 620mAh Lithium-ion
Approximately 8-9 Hours
Charger: DC +5V, Micro USB Connector
Power switch (push): on/off
Mute switch (push): on/off
Microphone switch (3 position): + 6db, normal, - 3db
Auxiliary volume/gain: increase, decrease
Channel select: A or B, in battery compartment
External Input: 0.13" (3.5 mm) stereo line level
3 x 1.25 x 0.75" (7.62 x 3.17 x 1.9 cm)
1.4 oz (39.68 g)
TeachLogic Sapphire Transmitter with Microphone and Lithium-Ion Battery Review