Distinctive foldable design--The bluetooth headset foldable design provides amazing flexibility?? portability?? and durability. No need to worry the headset will be break off when you put it in your bag. Just one press to retract the earbuds. The headset cable can be adjust to the best length</br>Outstanding Battery life. 300 hours standby time?? 18 hours talking time and 16 hours music time</br>Vibration for incoming call. The right side of the headset will vibrate when someone calls you. Will never miss any phone calls</br>Latest Bluetooth version 4.1. Combine with 6G CVC Noise Reduction technology?? Ensure Hi-Fi Stereo Sound quality and Strong Signal</br>Easy to use?? just turn the headset on enter pairing mode?? no need additional operation. Easy to change music and the volume and songs</br></br>Product Description</br></br><b>Note</b>: <br>Please know to single click "utton??you can change the playing songs??but when long press the "-"??you can adjust its volume. <br><br><b>Main Features</b>: <br>1.Retractable neckband design.Especially suitable for sporting situation. <br>2.Portable and space-saving <br>3.Amazing clear sound.The overall voice quality for calling sounds natural and works great. <br>4.Cutting-edge Design Concept??be ergonomically.Comfortable Wearing Experience. <br>5.Unparalleled Battery Life.Built in high capacity rechargable lipo battery. <br>6.Unparalleled Battery Life.Built in high capacity rechargable lipo battery. <br>7.Pair headset with 2 mobile phones. <br>8.Answer&End call/Incoming call vibration remind. <br>9.Power Promt.Each time turning on this headset??it will report headset battery power remaining. <br>10.Voice Dial.Unlock the mobile phone and double click the volume "to launch teh voice dial??and then just