aceyoon Bluetooth Headphones Single Ear With Mic V4.0 In Ear Wireless Stereo Audio Earpiece Monitor Long Standby Hands Free Headset for Driving， Meeting， Running， Gym<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Long using time: Built in 230mAh polymer battery， low consumption， 2-3H charging time， 5-7 days long standby time， 22H taking time， 20H continuous music playing time. </span></li><li><span class="a-list-item"> Adopts CSR4.0 Bluetooth chips and CVC6.0 noise cancelling technology， matches with HD microphone， to achieve more clear talking and natural sound， just like face to face. </span></li><li><span class="a-list-item"> 10-15M barrier-free long transmission distance， convenient use. Also you can connect two devices at the same time， freely switch. And Bluetooth headset power will be shown in your phone. </span></li><li><span class="a-list-item"> Support intelligent dormancy， this headset will be shut down automatically if disconnected within 10 minutes. </span></li><li><span class="a-list-item"> Huge compatibility， support a variety of Bluetooth devices， fast connection， simple operation， easy to use. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41Tsi4lvgzL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51czBBPMSPL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51EqKiUNTzL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51ZBzsOFPcL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51UMdB4dHrL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51NlHdjsQlL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51xhwo8wl-L.jpg" noproxy>