The Ulike Air 10 Pro uses advanced IPL with built-in cooling for a more comfortable experience. Safe, effective, and designed for use on arms, legs, underarms, upper lip, and bikini line with four customisable modes to suit your needs. All Ulike products include a 2-year warranty from the date of purchase. If you experience a defect with your device, please contact seasupport@ulike.com via email for initial verification. Once Ulike confirms the product is defective, you may reach out to us with that proof to arrange an exchange.