1. Volume with power on/of

2. mic:speak input piece

3. LED: power indicateor (faded red mean slow bater, no light means no batter)

4. pitch adjuster (8 selection: 3 high, 3 low, one normal, 1 ET)

Operations:

1. Take apart battery cover, install on 9v battery.

2. Put device over mouthpiece, make sure that sound insulator surrounds the mouth

3. Turn on volume adjuster

4. Select desireed pitch.

5. Speak toward mic.

6. When using ET, speak slowly and distinctively

Cautions:

Is voicechanging fails, pls check the following:

• telephone issteadily placed

• the mouthpleoe has anirregular shape

• battery power is disinserted