Meicheng WT-640T User Manual Download Page 2

Device introduction 

1.  On/Off button 
2.  Contact-Charging points 
3.  Line in

 

[Only in Transmitter]

 

4. 

 Mini USB 

charging port.

 

 

5.  Microphone 

[Only in Transmitter]

 

Earphone

      [Only in Receiver]

 

6.  Function button

+

 

7.  Function button

 

 

8.  Set button

Set

[Only in Transmitter]

 

SQL button

SQL

[Only in Receiver]

9.

 

Lock button

Lock

 

10.

 

LCD display

Display RF signal 

status, button lock, battery 
status.

 The number on the

 [CH] 

upper side means channels 
number

 [0~99]; 

The number on 

the

 [VOL] 

upper side means 

volume 

[T:1

2

R:0~15];

 In 

Receiver, the number on 

[SQL] 

upper side means SQL levels. 

11.

 

Back clip. 

Operation 

1.

 

Switch On/Off

Switch up is on, switch down is off. When switching on, the 

device is locked.   

2.

 

Unlock/Lock: Keep pushing Lock

Lock

for 3 seconds to unlock/lock. 

Device is locked when display showing a Lock picture. Note: If no 

operation in 10 seconds after unlocking, the device will turn to 

locked mode automatically. 

3.

 

Change Channel:   

A. Manual adjust—When device is unlocked, push

+

 or 

to change channels, the display will show channel number 

[0~99]. 

When the transmitter and receiver are in the same 

channel, they will be working. 

B. Automatic adjust—Fist turn on the transmitter’s power and 

adjust channel well, then keep pressing the

SQL

button on the 

Receiver to turn on power, Receiver will scan automatically to the 

same channel with Transmitter which already turn on. After 

Receiver finished the scanning, and it needs re-lock (please 

pressing

Set

button three seconds, total press two times)

 to lock 

the channel(display’s backlight will off), when the transmitter and 

receiver are in the same channel, they will be working. 

 

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