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The Advanced Audio Distribution Profile (A2DP) of which Bluetooth wireless headphones use, delivers surprisingly good audio quality. The roaming range of Bluetooth headphones from a transmitter is good (up to ~20 ft). Perhaps most importantly, because Bluetooth technology has already achieved global acceptance, compatibility between varying adapters and headphones is fairly high. The latter reason is particularly important because it allows the possibility of portable media player manufacturers to incorporate Bluetooth into their devices; therefore, they can connect to any Bluetooth headphones sans an additional external adapter. Such devices are already in the market. Almost all of the latest cell phones that support Bluetooth as well as media playback (smartphone or not), can be paired with Bluetooth headphones for high fidelity wire-free music enjoyment.</p> <P>With all that said, it is not hard to see why the popularity of Bluetooth headphones is continually on the rise. This year at the technology trade shows (from CES to CeBIT) there were constantly a handful of companies looking to tap into this blooming market. One such company is ever-E. ever-E is a company whose product line consists heavily of Bluetooth related products. This includes an extensive line of Bluetooth stereo headphone and audio adapters (both general and specialized).</P> <P>In this article, I will be taking a look at two of ever-E's Bluetooth stereo headphones. I will also examine two of their specialty adapters which are especially designed for two of the most popular portable entertainment devices currently on the market: the iPod and the PSP.</P> <P align="center"><a href="atruereview/ever_e_headphones/17.jpg"><img src="atruereview/ever_e_headphones/17th.jpg"alt="Bluetooth Headphones and Audio Adapters from ever-E" title="Bluetooth Headphones and Audio Adapters from ever-E" width="250" height="259" border="0"></a><br> <font size="-1">Click on image for larger picture</font> </P> <P><strong>Packaging:</strong></P> <P>The Bluetooth headphones and adapters from ever-E came packaged in blister packaging. The product is prominently displayed in this packaging. ever-E's Bluetooth packaging varies whether the units are purchase as a solo unit or a bundle of units. More about this will be mentioned at the end of the review. </P> <p><strong>Headphones (T901s and T902s)</strong></p> <p>Bluetooth Headphones and Audio Adapter's specifications can be found on ever-e's <a href="http://www.ever-e.com/product.asp">web site</a>. </p> <blockquote> <p><strong>Specifications:</strong></p> <ul> <li> Frequency: 2.402~2.480GHz</li> <li> Bluetooth V1.2, up to 10 meters</li> <li> GFSK(Gaussian Frequency Shift Keying)</li> <li> Supported profiles: A2DP, AVRCP, (HHH)</li> <li> Sensitivity : < 0.1% BER at -80 dBm</li> <li> RF Output Power : -6dBm to 4dBm</li> <li> Operating temperature : -10C to +55C</li> <li> Speaker: dia. 27mm stereo</li> <li> Frequency Response: 20Hz~20KHz</li> <li> Listening time : 6 hours</li> <li> Power consumption: 30-40 mAh</li> <li> Battery: 3.7V 300mA Rechargeable Li-Polymer</li> <li> Power: Class 2, input AC 100-240V, output DC 5v 500MA-1A, mini USB plug</li> <li> Dimensions: dia. 40mm, folded: 126mm x70mm x40mm</li> <li> Weight (including battery): T901s – 40g, T902s – 45g</li> </ul> </blockquote> <p><strong>Adapters (A371 and A375)</strong></p> <blockquote> <p><strong>Specifications:</strong></p> <ul> <li> Frequency: 2.402~2.480GHz</li> <li> Bluetooth V1.2, up to 10 meters</li> <li> GFSK(Gaussian Frequency Shift Keying)</li> <li> Supported profiles: A2DP, AVRCP (A371)</li> <li> 30 pin iPod dock connector (A371)</li> <li> 3.5 mm (1/8 in) stereo audio plug (A375)</li> <li> Sensitivity : < 0.1% BER at -80 dBm</li> <li> RF Output Power : -6dBm to 4dBm</li> <li> Operating temperature : -10C to +55C</li> <li> Frequency Response: 20Hz~20KHz</li> <li> Listening time : more than 5 hours</li> <li> Power consumption: 30 mAh</li> <li> Battery: 3.7V 200mA Rechargeable Li-Polymer</li> <li> Power: Class 2, input AC 100-240V, output DC 5v 500MA-1A, mini USB plug</li> <li> Dimensions: A371 – 49 mm, 28 mm, 12 mm; A375 – 126 mm, 20 mm, 30 mm</li> <li> Weight (including battery): A371 – 16g, A375 – 20g</li> </ul> </blockquote> <p align="right"><a href="atruereview/ever_e_headphones/bluetooth.php"></a> <a href="ever_e_headphones/bluetooth.php">Next (Bluetooth Headphones Descriptions)</a></p> </div> </td> </tr> </table> </div> <div id="footer" class="clr"> <div class="rk-1"> <div class="rk-2"> <div id="the-footer">  </div> </div> </div> </div> </div> </body> </html>