I tried several different brands, from the local sporting goods store brand to nicer online brands, and none of them worked for me. So if I go hiking somewhere and get lost, I have a general idea of where I am - I can see it on the map. Theyll last about 2 days with constant use. You can make your own saline. I use them to comute to work, 30 min walk each way. I AM VERY VERY DISAPPOINTED! We dont have much cabinet space and we struggle to figure out a way to keep things organized. Eine Sache, die ich da noch gerne gesehen hätte, wäre eine Lautstärkenverstellung an den Inears selbst gewesen. Generally, not much to comment about since it is a all-round product which does well (even though not the best) in almost every aspect of a wireless ANC headphone (Sound quality, Connectivity, Ease of Control). My biggest issue is that its SO sensitive about where the devices sit, I end up spending minutes every night positioning them to charge and then often one will stop charging or partially charge.