Runners used to hum to themselves; now they wear headphones and listen to tunes as they jog along. Same goes for those who exercise. Or play sports even. But headphones made for those participating in outdoor activities have to do more than just look cool. The headphones have to balance between providing immersive sound while not cutting off the person from the \u201creal\u201d world where cars zip across walkways and bikes race over sidewalks. Panasonic\u2019s Open Ear Bone Conduction Headphones keeps the scale level, and it\u2019s all in how it's made and works.\r\nHow They're Made\r\nGet the obvious out of the way first: these headphones are highly water resistant, which is good for those who don\u2019t hide inside when the weather\u2019s inclement. Or sweat profusely. Being wired, there\u2019s no batteries to charge or Bluetooth to pair \u2014 just plug the mini-jack into the audio source and hit the \u201cPlay\u201d button.\r\nHow They Fit\r\nThe earbuds go into the ear but not just by pushing them against the hole because there\u2019s a sort of \u201cjawbone\u201d shape that fits around the back of the head and against the back of the ears as part of the overall positioning. Good thing that there\u2019s built-in cushioning or the ears would start to hurt after a while. This design also includes 3 reflective stripes (side\/back) to be seen \u2014 a nice safety touch that potentially could save a life (I can\u2019t begin to count how many times I\u2019ve come across a person running at night in dark clothes).\r\nHow They Work\r\nBut as the name says, \u201cbone conduction\u201d is part of the reason these headphones exist. Rather than blast the audio into the ear canal, they're worn next to your ear so that sound is carried into your head through the cheek bones. Sounds scary, but it works and no \u2014 your face isn\u2019t vibrating while the music is playing. On a physical level it means that outside sounds (i.e., the environment surrounding you) isn\u2019t being cut off. Those who run or even those crossing the street can benefit from hearing a car horn blast clearly, as I\u2019ve found that in a competition between a person and a car, the car always wins. I took a run through my neighborhood and quickly got used to the outside sounds being there, along with the music I was playing. I should of course mention that the audio quality of the Panasonic is quite good and with decent bass, although a bit of the outside does \u201cbleed\u201d through and into what is being heard. A deal-breaker, no, especially as that will result in my not getting the evil-eye the next time my wife calls out while I've got these on inside the house.\r\nWhy They're Good\r\nPanasonic\u2019s HGS10-W Open Ear Bone Conduction Headphones fit comfortably, sound good and provide a safer path for listening to music by not cutting off ambient sounds. I\u2019d say that was worth their $79.99 price tag.