Setting them up was a dawdle - hardest bit was working out which size ear-pieces to fit my ears which was just a question of trying each of the 3 sizes for a little while and deciding which was most comfortable.
I realise that these are not the very latest technology but my music, which is mostly classical, sounds great and I'm sure that when I use them with my 'phone they will be just as satisfactory.
I'm sure that if I'd paid 5 or 10 times as much I'd not haver got a 5 or 10 times better product.