Make sure the headphones are powered on and securely plugged into the headphone connector on your device
Try another StayHear+ tip size
Try another device or music application
Poor or no noise reduction
Make sure the headphones power is switched on and the green mode indicator is on
Try another StayHear+ tip size; Make sure the tip sits comfortably yet securely in the bowl of the ear
Ensure that headphones are properly charged
No audio from microphone
Be sure you're using an Apple device with headphones made for Apple, and an Samsung/Android device for headphones made for Samsung/Android. The microphone will not work if you are using the wrong headphones with your device
Be sure the device is not muted. Check the device to see if the mute functionality has been enabled
Check the cellular reception of the phone. A poor or weak connection to the cell service could cause poor audio quality while on a call. Try the call again when the reception improves
Power cycle or reboot the device. The device may have malfunctioned and might need to be reset