Receive a coupon for $10.00 off a future purchase when you spend $30.00 or more in a single transaction (before tax/shipping) at participating stores and  RadioShack.com through 6-01-13. .A maximum of one coupon can be earned per transaction. Original receipt must be kept to redeem coupon. If lost, coupon cannot be replaced. Only one coupon can be redeemed per transaction. Some restrictions apply.