simolio wireless bluetooth headphones with microphone, volume limited safer headphone for child teen and adult, wireless headsets with share port, aux cable, eva case, study/travel partner-yellow simolio the simolio wireless bluetooth headphones featuring the innovative characters for a pure and natural listening experience as follows:<br><br> caring for your hearing with 3 levels of volume limiting - 75db for toddlers, 85db for kids, 94db for adults. this feature is effective both in wired and wireless use.<br><br> the soft noise isolating memory form earmuffs play the role of passive noise reduction, which blocks the outside noise and greatly improves the listening efficiency. make kids/children focus on learning and listening.<br><br> advanced csr chip is adopted, promise you to get the superior sound quality and clear calls. with high snr (signal to noise ratio) and 40mm ndfeb driver give you a crystal clear sound.<br><br> comes with 3.5mm detachable audio cable for wired use when the bluetooth headphone is out of power or the device does not have bluetooth capabilities. <br><br> anti-violence headphones for kids and youth. some nifty engineering ensure the ear pads won't fall off.<br><br> compact and fold up very small. easy to storage in the cute eva case(included), perfect partner for travelling or backing to school.