He uses them for Google Meets for school. The box also includes an extension cable to elongate the already quite long lead. The sale price was still good though for shoes he can wear now, and still have some wiggle room. Sin necesidad de amplificador auxiliar. The charger cable for phone comes with 12 months warranty. Small enough to carry in purse. One awesome thing I learned my 2nd day owning these shoes is that if you calibrate to follow HMD, a game like "Dead Effect 2," will actually allow you to have shoe movement independent of head movement! as you can adjust the straps to fit your foot. The charging adapter plug feels insulated but can get warm. I?ve purchased this insurance on many products but haven?t had to use it.