The EndoStim IPG is a device that is used internally to deliver electrical stimulation to the lower esophageal sphincter (LES) through the use of proprietary stimulation algorithms. The IPG can be programmed (algorithms and parameters) these can be adjusted by the clinicians based on the patents needs through wireless communication technology the EndoStim Programmer. Device comes with a non rechargeable battery and is able to last for 10-15 years under normal use.