High Fidelity Sound: This bluetooth earpiece is equipped with high-end CSR chip ensures maximum signal quality and guarantees outstanding sound quality.</br>Extra Plastic Carrying Case included. Easy to carry and very good for protection. Noted kindly: the case has NO power bank function.</br>Ultralight and comfortable design ergonomically-shaped in-ear plugs and ear loops brings comfortable and no heavy feeling even after long-time wearing. The 180 degrees flip-boom arm allows to adjust the angle and fit this headset in right or left ear.</br>Compatible with iPhone Samsung Huawei LG HTC Android and Other Leading Smartphones. Up to 8hrs working time & 240 hrs stand-by with 1.5hrs quick charge. 10 meters/ 30 feets range.</br>1-Year Warranty and 45 Days Return Policy</br></br>Product Description</br></br><b><p>Easy to pair with two devices at the same time</p></b>It can pair with two devices and keep connection simultaneously so that you can answer calls from these devices or listen to music with one phone and talk on the other seamlessly switch between two Bluetooth devices make it very convenient to use. Controls of answering and hanging up?? playing/pausing music?? adjusting the volume and controlling the songs are well designed on the B