<p><strong>Specifications</strong></p>
<p>Product Code: Aukey EP-B40</p>
<p>Technology: BT 4.1, A2DP, AVRCP, HSP, HFP, aptX</p>
<p>Microphone Noise Reduction: 6th generation dual-mic cVc</p>
<p>Microphone Sensitivity: -42dB &plusmn;3dB</p>
<p>Frequency Range: 20Hz-20KHz</p>
<p>Input: DC 5V</p>
<p>Charging Time: 1.5 hours</p>
<p>Play Time: Up to 8 hours</p>
<p>Battery Type: Li-Polymer (2 x 60mAh)</p>
<p>Operating Range: Up to 10m / 33ft</p>
<p>Weight: 13g</p>