2 tones of smart cellular phone vibration alerts on silent mode (seamless loops).

Time lengths:

Smartphone vibrating short loop – tone 1 – 01 – 0:07 Smartphone vibrating short loop – tone 1 – 02 – 0:07 Smartphone vibrating short loop – tone 2 – 01 – 0:08 Smartphone vibrating short loop – tone 2 – 02 – 0:08