While it seems there are few things we let come between us and our cell phones, Shungite is one thing you might want to allow.
Known to neutralize the effects of radiation from the environment, including your cell phone, the shungite earrings are light weight, simple, and look great with just about everything... I wear mine 24/7.
Shungite: Purification, Restoration. Growth. Positive change. Super conductor. Grounder. Neutralizes effects of EMF's & Radiation. High Vibration