Product features:

1. It features good quality as well as reasonable price.

2. The vibrator motor has been inspected carefully and works well before shipping.

Application:

This vibrator motor is responsible for vibration function of your phone, it often solves following problems:

1. The phone dosen't vibrate or vibrate slightly that you cannot notice comming information when in vibration mode.

2. The phone vibrates loudly which bothers you when in silent mode.
 
In these cases above, you may need this new vibrator motor to replace your damaged one.