?is a portable wireless Bluetooth headset which is easy to carry. <strong>Bluetooth 4.1</strong> low energy technology・ the headset is equipped with long working time. Besides・ with water resistant and sweatproof design・ it prevents sweat and slight rain from interfering with headset operation effectively.<br><br><img src="http://des.chinabrands.com/uploads/2015/201508/heditor/201508031634109215.jpg" alt="Bluedio M2 In-ear Bluetooth 4.1 Wireless Headset Stereo Sport Earphone with Mic for Mobile Phone Calls" /><br><br><strong>Main Features:</strong><br>Multipoint pairing・ can connect to 2 mobile phones simultaneously <br>Four languages voice prompt for choices (Chinese・ English・ French・ Spanish)<br>Perfect sound brings amazing feeling <br>Human engineering design and high quality materials make the headset comfortable for daily use <br>Compatible with most smart phones・ computers and other devices with Bluetooth function<br><br><img src="http://des.chinabrands.com/uploads/2015/201508/heditor/201508031634108898.jpg" alt="Bluedio M2 In-ear Bluetooth 4.1 Wireless Headset Stereo Sport Earphone with Mic for Mobile Phone Calls" /><br /><br><br /><br><img src="http://des.chinabrands.com/uploads/2015/201508/heditor/201508031634101941.jpg" alt="Bluedio M2 In-ear Bluetooth 4.1 Wireless Headset Stereo Sport Earphone with Mic for Mobile Phone Calls" /><br /><br><br /><br><img src="http://des.chinabrands.com/uploads/2015/201508/heditor/201508031634109396.jpg" alt="Bluedio M2 In-ear Bluetooth 4.1 Wireless Headset Stereo Sport Earphone with Mic for Mobile Phone Calls" /><br /><br><br /><br><img src="http://des.chinabrands.com/uploads/2015/201508/heditor/201508031634102607.jpg" alt="Bluedio M2 In-ear Bluetooth 4.1 Wireless Headset Stereo Sport Earphone with Mic for Mobile Phone Calls" /><br /><br><br /><br><img src="http://des.chinabrands.com/uploads/2015/201508/heditor/201508031634101133.jpg" alt="Bluedio M2 In-ear Bluetooth 4.1 Wireless Headset Stereo Sport Earphone with Mic for Mobile Phone Calls" /><br /><br><br /><br><img src="http://des.chinabrands.com/uploads/2015/201508/heditor/201508031634112348.jpg" alt="Bluedio M2 In-ear Bluetooth 4.1 Wireless Headset Stereo Sport Earphone with Mic for Mobile Phone Calls" /><br /><br><br /><br><img src="http://des.chinabrands.com/uploads/2015/201508/heditor/201508031634116587.jpg" alt="Bluedio M2 In-ear Bluetooth 4.1 Wireless Headset Stereo Sport Earphone with Mic for Mobile Phone Calls" /><br /><br><br /><br><img src="http://des.chinabrands.com/uploads/2015/201508/heditor/201508031634114653.jpg" alt="Bluedio M2 In-ear Bluetooth 4.1 Wireless Headset Stereo Sport Earphone with Mic for Mobile Phone Calls" /><br /><br><br /><br><img src="http://des.chinabrands.com/uploads/2015/201508/heditor/201508031634117790.jpg" alt="Bluedio M2 In-ear Bluetooth 4.1 Wireless Headset Stereo Sport Earphone with Mic for Mobile Phone Calls" /><br /><br><br /><br><img src="http://des.chinabrands.com/uploads/2015/201508/heditor/201508031634116919.jpg" alt="Bluedio M2 In-ear Bluetooth 4.1 Wireless Headset Stereo Sport Earphone with Mic for Mobile Phone Calls" /><br /><br><br /><br><img src="http://des.chinabrands.com/uploads/2015/201508/heditor/201508031634119355.jpg" alt="Bluedio M2 In-ear Bluetooth 4.1 Wireless Headset Stereo Sport Earphone with Mic for Mobile Phone Calls" />                 <strong>Brand:</strong> Bluedio <br />             <strong>Model  :</strong> M2 <br />             <strong>Color :</strong> White・ Black・ Coffee <br />             <strong>Wearing type :</strong> In-Ear <br />             <strong>Function :</strong> Microphone・ Noise Cancelling・ Multi connection function・ Bluetooth・ Song switching・ Voice control・ HiFi                               <strong>Headset type:</strong> Dynamic <br />             <strong>Connectivity :</strong> Wireless <br />             <strong>Connecting interface :</strong> Micro USB <br />             <strong>Application :</strong> Sport・ Computer・ Mobile Phone <br />             <strong>Cable length :</strong> 0.6m <br />             <strong>Sound channel:</strong> Two-channel (stereo) <br />             <strong>Frequency response :</strong> 20~20KHz <br />             <strong>Impedance :</strong> 32ohms <br />             <strong>Sensitivity :</strong> 110 dB <br />             <strong>Working time:</strong> Music time: About 7 hours・ Talk time: About 7 hours <br />             <strong>Standby time:</strong> About 160 hours <br />             <strong>Charging time:</strong> About 2 hours                               <strong>Bluetooth:</strong> Yes <br />             <strong>Bluetooth version:</strong> V4.1 <br />             <strong>Bluetooth distance:</strong> W/O obstacles 10m <br />             <strong>Bluetooth protocol:</strong> A2DP・ HSP・ HFP・ AVRCP <br />             <strong>Bluetooth mode:</strong> Hands free                               Array             <strong>Package weight:</strong> 0.112 kg <br />             <strong>Product size (L x W x H) :</strong> 65 x 3 x 2 cm / 25.55 x 1.18 x 0.79 inches <br />             <strong>Package size (L x W x H) :</strong> 25 x 15 x 5 cm / 9.83 x 5.90 x 1.97 inches                               <strong>Package contents:</strong> 1 x M2 Bluetooth Headset・ 2 x Pair of Earplug・ 1 x USB Charging Cable・ 1 x Bilingual User Manual in English and Chinese                 <img src="http://des.chinabrands.com/uploads/2015/201506/heditor/201506111438066890.jpg" alt="Bluedio M2 In-ear Bluetooth 4.1 Wireless Headset Stereo Sport Earphone with Mic for Mobile Phone Calls" /><br /><br /><img src="http://des.chinabrands.com/uploads/2015/201506/heditor/201506111438064319.jpg" alt="Bluedio M2 In-ear Bluetooth 4.1 Wireless Headset Stereo Sport Earphone with Mic for Mobile Phone Calls" />