Nice product, well presented, compact. The installation was complicated for my part, I have failed my first smartphone and had to go through my PC for the installation work. Once the connected speaker, I understood that she only allowed to be used via the BOSE interface. This implies a BOSE music library, and use of music services requires to subscribe to the paid versions to benefit (10 euros per month). This closure quite displeased me, I imagined being able to simply log in as BAFLE to my wireless phone so you can easily listen to my MP3 or SPOTIFY example (besides free access to smartphone). However radio services via this interface are complete and of excellent quality. So I use this product simply with a double 3.5mm jack (not supplied, 4 euros) as a single enclosure. The sound itself is very good. The bass very well regulated, tested on all types of music, brand reputation is well deserved. No crackling or saturation even at high volume (also very satisfactory, quite sufficient for a living). I have not yet found may be how to use the Wifi function optimally, lack of instructions for my purely novice (There are no records with the product, everything must be done by internet). Finally the question of price, 400 euros is the BOSE is the price of excellence ... only aspect annoying creating this micro-market behind its interface. otherwise excellent product.