Logitech FreePulse Wireless headphonesPropane - July 16, 2007
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- Protocol: Bluetooth® 2.0 with Enhanced Data Rate (EDR)
- Range: Maximum 33 feet
- Frequency: 2.4 GHz
- Transmission format: Digital
The testing of these headphones was completed in several parts. These parts were designed to test the product in different aspects. The first part is, of course, how the headphones sound. The second part is the range of the headphones. The third part is the longevity of the battery, and the final part is the comfort.
- The transmitter connected to a 30GB iPod video (5th generation)
- All audio files played were either 320kbps MP3 or V0 MP3 quality
To test how the headphones sound, I used a variety of different music to test a full gamut of frequencies and intensities. I tested most songs with the bass booster both on and off. With the sounds of "Pop, Lock, & Drop it" by Huey, the bass came through at an acceptable level with the bass booster off, but when I turned the bass booster on, the bass really punched with out dropping any of the higher sounds like high hats. Along the more classical route (and along the theme of freedom), Tchaikovsky's "Overture '1812'" came through with crisp high instruments and punchy cannon shots that didn't bleed. Granted, these headphones don't sound as good as a home theater system, but they also aren't supposed to be. They outperform any other lightweight headphones that I have heard in a long time and left me very impressed with the quality of battery driven drivers (speakers). I was able to hear numerous details that I never had heard before on any ipod headphones. I did test more than the two songs and all songs left me with the same impression.
The range of the headphones was easy to test. I was easily able to go well past the 33 foot range that was given on the box, so long as I had line of sight. As soon as a wall or other solid object was put in between the headphones and the transmitter, that distance came closer to 15-20 feet. For all practical purposes though, there were no problems with the range, seeing as the farthest you will probably be is a few feet.
The battery on my first full charge lasted just shy of the advertised mark of 6 hours, but it was acceptably close. The charge time was short, only around 2 hours. For most trips, the 6 hours is plenty, but on a long flight, you'll be out of luck. The batteries last about as long on both the headphones and the transmitter, so you won't be giving one a partial discharge every time, which will benefit the life of the battery.
Finally, the comfort of the headphones. These headphones are lightweight as advertised and are comfortable for the first hour to two hours of having them on. After that, however, my ears started to become sore and I kept finding myself trying to readjust the placement on my ears to no avail. Also, the band that goes behind my head was constantly against my neck, which bothered me at first, but was something that I quickly got used to. All in all, these are pretty comfortable, but I just wish that they stayed comfortable longer. However, the discomfort is most likely also dependent on the size and shape of the ear.