iS3Charge.com shows as a charge for one of their products.

iS3Charge.com says:
"Why is there a charge on my card? It's a charge for one of our award-winning products."

The products they list on iS3Charge.com include:

Contact

888-348-4282 or 561-368-5344
billing@iS3.com or support@iS3.com