<p><b>The after-sales service of our store include: </b><br>·30 days free return/replacement<br> ·18-month warranty.</p><p>Please note: This product requires the use of batteries.</p> <p>If our product cannot satisfy you, you can contact us through Amazon with your Amazon order number for a refund or a replacement. We would be more than happy to resolve it for you as long as you contact us.</p>