Easy to pair them with a phone (we have Huawei phones) and so simple to use them. Do not follow the size chart provided. (I left them on the porch). Busca otra. We should be receiving a 100% discount. the sound quality was terrible and after an hour of putting the ear bud ring around my ear had to remove it because it started hurting. at high volume anyone within 10 feet would be hearing it, though quite muffled. I chose to use included bumper mount rather than my 2? RV receiver to give the bikes more road clearance. Will return my review to a 5 star unless something happens to this pair within the next few months of usage. And that?s not even full volume.