Latest Bluetooth version 4.1. Combine with 6G CVC Noise Reduction technology Ensure Hi-Fi Stereo Sound quality and Strong Signal.</br>Latest Neckband style design concept. Newly added foldable function. 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 call you. Will never miss any phone call.</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><strong>Specification:</strong> <br /> <br /> BluetoothCSR4.1 <br /> Working Distanced10m <br /> Charging Timed 3.5 hours <br /> Talk Timee18 hours <br /> Music Timee16 hours <br /> Standby Timee300 hours <br /> <br /> <strong> EGRD Newest Design Foldable and Retractable Headset. </strong> <br /> <br /> <strong>Amazing Sound Quality : </strong> <br /> Adopt CSR8635 chips. Combine 6G CVC noise cancelling with cutting-edge  sound processing technology. We believe you will thrilled if you get  this headset. The sound quality outclassing most of the same price on  the market of headset. <br /> <br /> <strong>Cutting-edge Design Concept: </strong> <br /> Super humanized design. For saving space and makes the headset more  easy to storage. Foldable design makes it come turn. The earbuds retract  with a push of a button?? just like the