This is a modified stethoscope made with silicon tubing and PP connectors, it is used for insufflating ozone into the ears.
The ear buds are made from soft silicon so they fit comfy and snug into your ears.
During ear insufflation the pure oxygen/ ozone mix in insufflated into the ears. Insufflating via the ears allows ozone access to the brain and also candida present in the ear canal. Many people report better moods and relief from symptoms such as brain fog and memory loss.