WarrantySatisfaction Guaranteed: If not 100% satisfied, receive a full refund. Return the product in its original packaging with the original cash receipt postmarked within 60 days of purchase.2 Year Limited Warranty: Proof of date of original purchase is required. Use of non-Oral-B replacement brush heads voids the warranty. For guarantee/warranty, consumer is responsible for product return costs. Terms and conditions apply. See details inside.