Thomson, through their Jensen consumer electronics brand, has developed a MP3 player which is built into a headphone design and geared towards the sports inclined. The Jensen JPM-3005 SportFones are priced at around $70. This purchase price includes a zippered carrying case.
The Jensen JPM-3005 SportFones have 512 MB of internal storage, which is enough to hold around 160 MP3 or WMA music files. These music files are transferred into the JPM-3005 via a USB cable which you plug into your computer as well as a port on the headphones (this also charges the SportFones' internal battery). The SportFones are compatible with Windows-based PCs and Mac OS computers.
The design of the JPM-3005 is such that the earpieces have a contoured shape to provide looks and also comfort. A flexible neckband and allergen-free silicone earpiece covers add to the comfort factor.
Controls for this MP3 player are located on the outer edge of one earpiece. Four buttons - a play/pause/stop button, a shuffle on/off button, and a pair of volume up/down buttons - are geared towards keeping operation of the device easy. Pressing and holding the volume buttons allows for volume control, while tapping the volume buttons engages skip and review functions.
Technical audio aspects of the JPM-3005 headphones include frequency range of 20 Hz to 20 kHz, signal-to-noise ratio of 85 dB, maximum SPL of 100 dB and power output of 12 mW per channel (stereo).
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