Total harmonic distortion: True, headphones with lower actual total harmonic distortion (THD) will sound better than those with higher THD. But the quoted THD numbers -- "less than 1 percent" -- aren't helpful in predicting sound quality. Listen to recordings of simply recorded acoustic guitar to assess the distortion of one set of headphones versus another. Some will sound appreciably cleaner than others.

Sensitivity is a measure of how effectively an earpiece converts an incoming electrical signal into an audible sound. It thus indicates how loud the headphones are for a given electrical drive level. It can be measured in decibels of sound pressure level per milliwatt (dB (SPL)/mW) or decibels of sound pressure level per volt (dB (SPL) / V).[12] Unfortunately, both definitions are widely used, often interchangeably. As the output voltage (but not power) of a headphone amplifier is essentially constant for most common headphones, dB/mW is often more useful if converted into dB/V using Ohm's law:
Sports headphones are among the most popular types of headphones and the best ones are now wireless. Sweat-resistant or even totally waterproof, they can be used at the gym or for running or biking. Some are have an open or semi-open design to let some sound in for safety reasons (so you can hear traffic noise). However, other models have a sealed, noise-isolating design.
However, most people won’t be able to hear the difference if they’re older than 24, have some form of noise-induced hearing loss, or are in the presence of outside noise. For this reason, we recommend wireless Bluetooth headphones for those commuting, or in noisy situations. If you’re listening primarily at home at the computer—get a set of wired headphones.
Music keeps me energized all day (and into the night) at work — 70% electronica/dance/DNB, 20% rock, 5% hip hip and 5% other/classical — but I’m tired of low-quality sound and I’m ready to put my money where my ears are.  I want to buy a USB DAC + Headphone amp, buy headphones (or, per your recommendation, to buy 2 pair) to complement the amp and my choice of music, and get great desktop sound for around $350.
The Sony noise-cancelling headphones are a tiny miracle. They’re great at blocking the outside world, so you’ll hear your music and nothing else – at a price point that’s less than $50. Wired headphones can be a tough sell for those who’ve grown accustomed to wire-free listening, but if you’re all right with a wired connection, this pair is an easy choice.
Fathers Day is just around the corner and we want to help you find the right gift for the amazing fathers in your life. At RadioShack of Lenoir, we have some awesome deals going on RIGHT NOW! Buy the Nebo Big Daddy Flashlight (2000 lumens) and get the Nebo Blast half off, Nebo Knives are buy one get one half off, and Nebo flipits are buy one get one 40% off. We also have some awesome Bluetooth portable speakers that can be taken to the lake, bonfire, or the beach. Also, come by and enter your father to win a Nebo glow light along with a Nebo cup! We hope to see you soon!
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