Not all earphones are workout-friendly, though; don't assume your earphones will handle what you throw at them unless they're fitness-oriented earphones, or at least are explicitly listed as water- and sweat-resistant. Really pricey earphones can be as fragile as really pricey headphones, and you don't want to accidentally ruin a $200 pair with ear sweat.
Noise cancelation for kids? Doesn’t that mean they’ll ignore their parents even more often than they already do? Perhaps, but it’s a risk worth taking if it means your kids’ hearing will be protected over the long-term. That’s exactly the premise behind the Puro PuroQuiet headphones. Not only are they wireless and great-sounding, but they also come equipped with a software limiter that keeps the volume at or below 85dB, which is considered the maximum volume that children should be exposed to for prolonged periods. The noise-canceling feature means they’ll actually be able to listen to lower (therefore safer) volumes.

In the professional audio sector, headphones are used in live situations by disc jockeys with a DJ mixer, and sound engineers for monitoring signal sources. In radio studios, DJs use a pair of headphones when talking to the microphone while the speakers are turned off to eliminate acoustic feedback while monitoring their own voice. In studio recordings, musicians and singers use headphones to play or sing along to a backing track or band. In military applications, audio signals of many varieties are monitored using headphones.

Impedance - This refers to the acceptable volume level at the voltage level expected on the device, in the case the headphone is the device. Many “pro” headphones have a higher impedance, but that just means you get less power at lower volumes. If you are looking for headphones that get loud, you will want a higher impedance. Impedance is measured in Ohms. A good impedance is over 25 Ohms.
If you don’t have time for a detailed breakdown of how codecs work, here’s the abridged version: they determine how data is transmitted from your smartphone to your wireless headphones. Different codecs make different compromises in quality and efficiency. SBC is the lowest common denominator of the Bluetooth codecs. Its support is required by all Bluetooth audio products.
Complementing the big bass response is the Powerbeats Pro’s eyebrow-raising 9-hour battery life, making them one of the longest-lasting fully wireless pairs of earbuds we’ve tested. Those 9 hours can be extended to almost 24 thanks to the wireless charging case — though it’s a bit bulkier than we’d like. Still, even if you leave the case at home, 9 hours is more than enough for an average working day of listening.
They’re among the best-performing wireless home/studio-style headphones in our ratings, and though the price fluctuates, you can often find them for as little as $150. That’s less than half of what you’d pay for some comparable models. If you want over-ear headphones with the convenience of Bluetooth, this pair is a steal. It comes with a detachable audio cable so that you can use your headphones without draining the battery, and the ear cups fold in for easy storage and travel.
Until now, the best true-wireless earbud features like noise cancellation or hands-free access to voice assistants were something you could only have if you spent well over $200. So when Amazon introduced its Echo Buds for just $130 with onboard Bose active noise reduction, IPX4 water-resistance, hands-free Alexa access, and a customizable fit, our only question was: Do they sound good?
Headphones are made in a range of different audio reproduction quality capabilities. Headsets designed for telephone use typically cannot reproduce sound with the high fidelity of expensive units designed for music listening by audiophiles. Headphones that use cables typically have either a 1/4 inch (6.35mm) or 1/8 inch (3.5mm) phone jack for plugging the headphones into the audio source. Some stereo earbuds are wireless, using Bluetooth connectivity to transmit the audio signal by radio waves from source devices like cellphones and digital players.[4] Due to the spread of wireless devices in recent years headphones are increasingly used by people in public places such as sidewalks, grocery stores, and public transit. Headphones are also used by people in various professional contexts, such as audio engineers mixing sound for live concerts or sound recordings and DJs, who use headphones to cue up the next song without the audience hearing, aircraft pilots and call center employees. The latter two types of employees use headphones with an integrated microphone.