Hello Garry,<br /><br />We truly value your feedback.<br /><br />We are very sorry to hear that you have experienced issues with the sound of your Ninja Nutri-Blender. Your comments will be forwarded to the appropriate teams here at Ninja to address the situations that should not occur in the future. To explore the options we can provide and ensure you receive the best performance from your unit, please contact us at 1-800-365-0135, and we will be more than happy to assist you.<br /><br />Kind regards,<br />Ninja Kitchen