User's Manual

About the operating and storage temperatures
For Earphone
-Operate in a place where temperature is always between -20 °C to 50°C (For (up to relative
humidity).The storage temperatures is 0°C~60°C.
For charging case
--Operate in a place where temperature is always between 0 °C to 45°C (For (up to relative
humidity).The storage temperatures is -10°C ~45°C.