The recessed anchors were crooked and needed to be adjusted, the hanging guide listed the hanging distance incorrectly (however this didn?t effect me as I always use scotch tape between 2 anchor points so I can mark them with a sharpie, stick it on the wall, and drill straight through the tape. As described, arrived on time. It was very easy to put up. Although they are M size they are really for a narrow foot. I?ve bought this style and brand before and they were my favorite, but these fit completely different. Giving the price less than 50 bucks this is a great buy. Too bad they dont have ambient mode, so I cant turn the volume up while Im walking. El precio es alto, yo me animé a comprarla porque en su momento estaba en oferta, pero ahora que la he estado usando quizás hasta la hubiera comprado a precio regular, vale cada peso. Time will tell if they hold up, but for the low cost, I dont think they can be beat. Whoreible low quality straight from China mine was broken !