We love keen products but this one did not match with sizing of other keen products. Our walks are mostly on pavement and hard surfaces. sns ultra 4d 3 and not all of the devices I tried for music use the minimum version, the enhanced app that is offered would not run on anything less than the minimum but it did not detract from the amazing listening experience. Build - These are pretty sturdy feeling. sns ultra 4d From the outside they look good and good quality. sns ultra 4d My only issue is I wish the "holes" were a bit bigger to put bigger bottles in it. Its not super grippy to the case, so sometimes opening the case the cover slides but its no biggie. I will be returning the one I bought. sns ultra 4d This device came with a package of matching orange silicone tips (X2 XL, X2 L, X2 XS) plus the X2 M on the device. I wanted something that FIT my foot.
sns ultra 4d