Jack Seller@ Premium Cordless Ultrasonic Cleaner for Dentures, Jewelry and More (CPT-QXQ)

First of all my AA batteries, i tried different ones, barely fit into the batter compartment. If i turn it on i can get it to loudly vibrate but i can't get the top to open. whats the trick to opening it?? Seller please inform or i will need to return it.

It stopped working after a couple of uses. I changed the batteries, but still nothing.

It ran with batteries improperly placed! It was so very cheaply made, too.

It don't do anything but a sound