The metal wheels found on the swing mechanism of this phone holder shaker have been upgraded to ensure its quiet operation. This mobile phone shaker also has a simple design to make it easier for you to use it. It can hold two phones on its support board, which can be secured in place by rubber straps.
Lastly, it can be powered in two ways: USB cable or four AA batteries, whichever is more convenient for you. A bonus of this device is you can push the ball and shake it to gain 7,000 steps every hour.