Here is a copy of an email from Amazon, they are currently offering $15 mp3 credits for customers that purchase wireless headphones or speakers!
Thank you for purchasing from Amazon.com. Your recent order 002-4588316-XXXXXXX entitles you to a promotional credit which we have added to your account. This credit can be applied to your next qualifying purchase. Additional information on this offer can be found here http://www.amazon.com/gp/feature.html/?&docId=1000797451 Your $15 credit is valid towards Amazon MP3 albums or single songs at http://www.amazon.com/mp3. For redemption instructions and additional information, click here http://www.amazon.com/mp3redeem. Amazon MP3 music is available to customers located in and with billing addresses in the United States. Taxes apply in some states. The promotional credit must be used by July 18, 2012. This offer is subject to these Terms and Conditions: http://www.amazon.com/gp/promotions/details/AV1WMRN2VKNH8 Thanks again for shopping with us. Amazon.com . . . To learn more about managing your orders on Amazon.com, please visit our Help pages at http://amazon.com/help/orders/ Please note: This e-mail message was sent from a notification-only address that cannot accept incoming e-mail. Please do not reply to this message. (c) 2010 Amazon.com, Inc. or its affiliates. All rights reserved. Amazon, Amazon.com and the Amazon.com logo are registered trademarks of Amazon.com, Inc. or its affiliates. Amazon.com, 1200 12th Ave. S., Suite 1200, Seattle, WA 98144-2734.