Some complained of the price but I think its worth getting this level of comfort back. They were for my teenage son. Ive already purchased another one in Black. Bocina bluetooth de buena calidad más no exelente, lo que busco en un altavoz bluetooth portátil es la buena calidad audio y esta mini bocina bluetooth cuenta con un sonido aceptable si tomamos en cuenta su portabilidad, en cuanto a sus materiales de construcción bastante aceptables, con relación al precio me parece una buena compra ya que la encontré en oferta y hasta el momento no presenta problemas de comunicación y batería. At first when I plugged them into the USB PORT on my computer WINDOWS 10 did recognized them however I played a tutorial video I didnt get any sound, so I preceded to download the drivers from the website as instructed gotten error from WINDOWS 10 stating file not recognized! I?ve had no problems with them slipping. We are using them to connect to Zoom which downgrades the quality a bit. I am a professional organizer and when we downsized from a 6000 square-foot home to an 1800 square-foot home I really had to put my organizational skills to the task . As its name implies, a quick release allows you to take something off, or release it, quickly. It is such a hassle for a person like me to charge them.