?V4.0<br><B>Bluetooth protocol:</B> HFP/HSP/A2DP/AVRCP/APT-X/CVC<br><B>Output power:</B> 10mW<br><B>Workable distance:</B> 10m (barrier-free space)<br><B>Charging hours:</B> 2hours<br><B>Charging voltage:</B> DC 5V<br><B>Sensitivity:</B> 90dB + / - 3dB<br><B>Frequency response:</B> 20-20000Hz<br>                 <strong>Color:</strong> Blue <br />             <strong>Communication:</strong> Wireless <br />             <strong>Function:</strong> Bluetooth・Microphone・Noise Cancelling <br />             <strong>Style:</strong> Ear Hook <br />             <strong>Use:</strong> Mobile phone・Portable Media Player・Sport                                            <strong>Package weight:</strong> 0.264 kg <br />             <strong>Package Size(L x W x H):</strong> 10.10 x 4.50 x 18.10 cm / 3.98 x 1.77 x 7.13 inches                               <strong>Package Contents:</strong> 1 x Awei A880BL Bluetooth Earphone・ 1 x Bilingual User Manual in English and Chinese・ 1 x USB Charging Cable・ 4 x Earbud Tip                 <p><img src="http://des.chinabrands.com/uploads/pdm-desc-pic/Distribution/image/2016/04/11/1460363847610667.jpg" style="" title="1460363847610667.jpg"/></p><p><img src="http://des.chinabrands.com/uploads/pdm-desc-pic/Distribution/image/2016/04/11/1460363851347673.jpg" style="" title="1460363851347673.jpg"/></p><p><img src="http://des.chinabrands.com/uploads/pdm-desc-pic/Distribution/image/2016/04/11/1460363846807083.jpg" style="" title="1460363846807083.jpg"/></p><p><img src="http://des.chinabrands.com/uploads/pdm-desc-pic/Distribution/image/2016/04/11/1460363860478747.jpg" style="" title="1460363860478747.jpg"/></p><p><img src="http://des.chinabrands.com/uploads/pdm-desc-pic/Distribution/image/2016/04/11/1460363858262146.jpg" style="" title="1460363858262146.jpg"/></p><p><img src="http://des.chinabrands.com/uploads/pdm-desc-pic/Distribution/image/2016/04/11/1460363866622947.jpg" style="" title="1460363866622947.jpg"/></p>