The PowerLaser Pro has settings for sound and vibration.

To adjust the volume or vibration: in standby mode, place two fingers on P3 and T3, and at the same time, slide a finger from “OFF” to “ON”. You can now adjust the volume and the vibration level.

P3 = 100% vibration, P2 = 50% vibration, P1 = no vibration.

T3 = 100% volume, T2 = 50% volume, T1 = no sound.

When you’ve selected the volume and vibration level that you’d like, slide a finger from “ON” to “OFF”, and the PowerLaser will save your settings.

This video shows you how: