Boult Audio PROBASS RANGER User Manual - Page 5

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Safety Precautions

Please make sure to follow the instructions provided in this

manual for your safety and to extend the life of the headphones.

Please keep this device away from extreme heat, humidity

or corrosive environment.

Please don't over-charge the headphones as it will decrease

the service life of battery.

Please use only a good quality phone charger (5V/1A) or

USB charging port to charge the headphones.

This product or the bluetooth function should not be used

during charging.