Do not expose the battery to extreme heat, cold or direct sunlight. Keep away from water or direct liquid contact. Do not put the device in your pocket or handbag directly; or mix it with coins, jewelry or other hard objects. The appropriate operating temperature is within 0 ̊C to 45 ̊C while charging and -10 ̊C to 60 ̊C while in use. Store at ambient temperature (5 ̊C to 30 ̊C) in a clean dry place.
Statements about these products not evaluated by the FDA. Not intended to diagnose, treat or cure any disease.
Potential for cancer and reproductive harm. P65WARNINGS.CA.GOV