Comes with 30 days. Serial numbers are recorded for each item we sell. 100% Genuine Original Dyson. NEW Dyson V15 detect, V11 Outsize Laser Slim Fluffy Cleaner Brush Head 971360-01. We are a reliable US company. Feedback is very very important for us to do business online. Your cooperation will be highly appreciated. We will try our best to reply you within 24 hours. Give us a chance to get problem solved Friendly. Thank You For Your Business with Us. View more great items.