Remove the lid
- Inside you will see the small DIP switches just above the power switch
- Switch 1 controls audible/silent. To the left is vibrate only, to the right is audible tone and vibrate.
- To move the switches use a pen or paperclip. Poke through the film and move the switch.
Use the Following Configurations (Note: Switch 1 is closest to the bottom)
• 25/60 (Silent) - all switches to the left.
• 25/40 (Silent) - Switch 2 to the right, all others left
• 20/120 (Audible) Switches 1 & 3 to the right, all others to the left
• 20/90 (Silent) Switches 2&3 to the right, all others to the left