Kid-Friendly Volume Limiter It is necessary to take good care of chirden’s sensitive ears! which can limit between 85/94 dB depending on the surrounding noise and volume of music. 85dB is recommended in general quiet environment. Share The Fun Together The 3.5mm sharing port allows it to be connected to another headphone. A warm reminder that this is not abnormal the volume to decrease slightly during sharing ,because they add certain impedance with the tandem headphones，but this does not affect normal share. Hard Steel Needle 3.5mm Port Replace most of the cheap and easy-to-break aluminum 3.5mm plugs used, using better steel needles, not easy to break, after 5000 plug-in experiments, 3kg lifting weight test, compatible with most children's environments, saving your more budget. Read more Healthy Endless Comfort The soft and breathable memory Earmuffs, which means kids won’t feel hot or heavy, and have been tested for SGS clean, there is no doubt the headphones will accompany your kids' grow up healthy Lightweight Design The ultra-light and odorless material protects children’s cervical spine from excessive pressure. This is another important point that every mother needs to consider when choosing kids headphones. More Tidy Learning Space Comes with a lightweight bag without adding extra bulk, and the drawstring closure keeps your headphones safe and secure. Also easy to carry between home and school. Read more