Top after-sales service : 12-month replacement warranty, 24-hour Customer-friendly Support Service. Foldable design(Easy put in school bag): The adjustable headband can adapt to the shape of your head for a perfect fit. Take your headphones wherever you go, just fold them up. Wired inline by 3.5mm AUX jack & Built-in Mic :1.2M cord With the standard 3.5mm headphone jack, kids headphone works with Ipad, tablets and more. The built-in mic lets you pick up calls and skip between tracks without missing a beat. Safety volume control:The headphones is set to 85db.max(Default),reducing the risk of permanent hearing damage.Volume can be switched from 85dB / 110dB when press and hold pause/play button 3 seconds. Fit for kids: For 3-16+ kids(Youngs) Durable materials,headphone are built to last and withstand the rough play of kids.The soft ear cushions perfectly on your ears and provide a comfortable listening experience.