The battery may not be making a proper connection. Remove and reseat the battery to ensure it is making a proper connection
Verify that the battery compartment is free of debris. Use compressed air to blow any dust or debris out of the battery compartment. Use rubbing alcohol and cotton swabs to clean the contacts within the battery compartment
The battery may not be sufficiently charged. Try charging the battery. Fully charging a completely discharged battery takes approximately 2 hours
My headphones pop when I power them on. Is this normal?
Yes, this is normal. You may hear a slight pop when you turn the headphones on. This occurs as the noise reduction circuitry powers up
Why is the LED on the headphones blinking?
The battery may not be sufficiently charged. Try charging the battery. Fully charging a completely discharged battery takes approximately 2 hours