LG TEC Multi Instruction Manual page 20

Press [▲] and [▼] button to set the treatment frequency.
Press [ S ] button to enter the setting the pulse duration.
Press [▲] and [▼] button to set the treatment pulse width.
5.10 Select the program
Press [▲] or [▼] button to select the treatment program
form TENS, EMS, MASSAGER and USER program.
TENS
U1
U1
U2
Therapy
CH1 CH2
U1
CH1
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Therapy
CH2