Hi there! - Shokz here. We're very sorry to hear this has been your experience. There is a phone setting that may resolve the low volume issue. -On the iPhone, go to Settings > Sound & Haptics > Headphone Safety, make sure that the Reduce Loud Audio Feature is switched off as this will affect the volume of the headphone. -On an Android, go to the Bluetooth Settings on the phone, find the headphone and make sure that the Absolute Volume feature is switched on for it. All Shokz come with a free two-year warranty. If you decide these are not a good fit for you, we kindly ask that you reach out to Sam's Club directly to learn of their return policy. Please visit our website, click "Support" to begin a claim. Thank you!