- It's not often you can say headphones are good for your health, but the Pure Sound Labs BT-5200 make the case for it.

- The Puro Sound Labs BT-5200 wireless headphones let you know when your volume is over 85 decibels (dB), which will potentially causing hearing loss. Has very good passive external noise blocking. 

- The Puro Sound Labs BT-5200 headphones might look like some other Bluetooth headphones, but they do deliver excellent audio while helping you protect yourself from hearing loss. That's not really "rock 'n' roll," but the BT-5200s are made to save you from yourself and keep your hearing healthy. Inside of the aluminum earcups with their 40 mm custom dynamic drivers is a microprocessor that monitors their decibel level and alerts you via an LED when your volume is safe or unsafe.

- Basically, to keep your hearing healthy, it's recommended that you keep volume at or below 85 dB. When you're in this range with the BT-5200’s, the tiny LED on the left cup glows green. When you're between 85 and 95,  a level you should limit to 2 hours or less, the LED glows yellow. Keep raising the volume till you're over 95 decibels and the LED turns red, letting you know you're on your way to hearing damage.

Knowing the safe listening level at a glance is great, but you still want to be able to hear what you're listening to. For that, Puro balanced the sound quality, so it actually sounds loud at a lower volume.

The Puros have a natural, warm tone with full bass, and sound excellent for a variety of music styles as well as spoken word such as audio book, movies, and TV. But for those with eclectic tastes or those who want a good multipurpose headphone, the BT-5200’s hit the mark.

- There is no active noise cancellation. The earcup padding combined with the pressure of the headband does block 82 percent of external audio according to the company. All it takes is listening to some music at low volume to completely block out extraneous noise in my office.

- That's sort of the whole point with the BT-5200’s, too: Between blocking out external noise and tuning the audio to be louder at lower volumes, you don't need to crank up your music or podcasts or movies to clearly hear them.

[The company makes a set for kids, too -- the BT-2200 that retails for $80. That model offers the same audio quality and external noise blocking, but it is limited to 85 dB. Regardless of the source or if you turn up the headphone or source volume, the loudest they'll get with that model is 85 dB. I saw dozens of BT-2200’s on eBay but not a single listing for my model, BT-5200; so don't be confused and attracted to the many pages of BT-2200's. The only BTW-5200 that has sold recently on eBay was for $90.]

- Battery life is rated up to 24 hours. If they do die, Puro includes a flat, tangle-free 3.5mm cable to use them wired.