LightSpeed Technologies 850iR Benutzerhandbuch

8 5 0 i R   U s e r   M a n u a l

TIPS ON CLASSROOM AUDIO

 wearing jewelry that may rub or bump against  

the microphone.

 the REDMIKE off during private conversations with a student,  

parent, or other classroom visitor. You can also cover the LED  
lens on top of the REDMIKE to block the signal.

 batteries each night. When recharged nightly, operating  

 time (actual usage) for the transmitters will last through a typical     
 school day.

 

Lightspeed Classroom Audio Systems are guaranteed against malfunction due to defects 
in materials and workmanship for a period of FIVE (5) YEARS, beginning at the date of 
the purchase invoice. If such malfunction occurs, the product will be repaired or replaced 
(at Lightspeed’s option) without charge during the warranty period.

1. Warranty on infrared microphones is FIVE (5) YEARS. 

2. Warranty on Lightspeed rechargeable batteries, all external cables and wires provided 

by Lightspeed is one (1) year.

3. Prepaid shipping labels are provided by Lightspeed factory or an authorized warranty 

service center for warranty repairs.

4. Warranty does not extend to finish, appearance items, or malfunctions due to abuse 

or operation other than specified conditions, nor does it extend to incidental or 
consequential damages. Repair by other than Lightspeed or its authorized service 
agencies will void this guarantee. Information on authorized service agencies is 
available from Lightspeed Technologies, Inc.

in a natural voice. A normal conversational speech level 

will provide an adequate signal. It is not necessary to increase  
the intensity of your voice—the audio system provides  
adequate amplification (approximately 5 – 10 dB) above  
ambient room noises.