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0621 IH-7827

1-800-295-5510

uline.com

WIRELESS MICROPHONE 

FOR SOUND LECTERN

H-7827

The wireless microphone uses two "AA" alkaline batteries 
or rechargeable batteries. 

•  The life expectancy of two alkaline batteries is about 

10 hours. 

•  When the power indication symbol on the display 

screen is flashing (See Figure 4), the batteries should 
be replaced immediately. 

This device complies with Part 15 of the FCC Rules.  

Operation is subject to the following two conditions:

1. This device may not cause harmful interference. 

2.  This device must accept any interference received, including  

interference that may cause undesired operation.

BATTERY REPLACEMENT

OPERATION

MICROPHONE STATUS DISPLAY

Push the Mute/  button and hold for two 
seconds. The display will skip to the group 
and channel selection. Push two times on  
the Mute/  button to turn on mute function. 
Press two more times to turn off mute function.  
(See Figure 1)

MANUALLY SELECTING THE GROUP AND CHANNEL

Push and hold the Select (

select

) button until 

the group and channel display flashes 
alternately. Push the Select button to  
change channel. (See Figure 2)

MICROPHONE DATA LOCK AND UNLOCK

Push the 

select

 and   button at the same 

time to lock and unlock microphone data. 
When locked, channel cannot be changed. 
(See Figure 3)

BATTERY DISPLAY

Displays the transmitter battery level. 

(See Figure 3)

OVERVIEW OF CONTROLS

181 12

Incompatible

GROUP

CHANNEL

MASTER LIST

1.5V

1.5V

Figure 4

Open

Close

Figure 1

Figure 3

Figure 2

#

DESCRIPTION

1

Microphone Head

2

LCD Screen

3

Power/Mute Control Switch

4

Select Button

5

Microphone Input Sensitivity Adjustment

6

AA Batteries (included)

FUNCTIONS

1.5V

1 .5V

1

2

3

4

6

5

18

1

1

Incompatible

GROUP

MASTER LIST

18 16

Incompatible

CHANNEL

MASTER LIST

1 1

Incompatible

CHANNEL

GROUP

MASTER LIST

Para Español, vea página 2.

Pour le français, consulter la page 3.

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