Two batteries??You can use each battery over 8 hour talk time?? 200 hour standby time and recharge it fully just 1.5 hours.</br>??Comfortable to wear?? The ergonomically-shaped in-ear plugs brings comfortable and no heavy(12g) feeling even after long-time wearing.</br>??SIRI Activate??You can say " or "Ignore" After the caller's name was broadcasted completely. And you could clike the answer button twice to activate the SIRI to make a calls.</br>Extreme ANC ExperienceThe powered active noise suppression technology system reduces incoming noise to an absolute bare minimum and will provide improved listening quality with less user distractions.</br>Warranty PeriodThe UFO headset includes 3-years money back & lifetime worry-free! So you could buy it as present to your husband/wife/parent/friend who always use the headset listen to music or answer the calls. It could compatible with Any Bluetooth-Enabled Phone.</br></br>Product Description</br></br><b>Q: Why is the volume very small?</b> <br> <br> A:You can adjust the volume on the headset as well the phone if you use Android phone.<br> <b>Q: How to deal with when you can't hear the other's sound duing the call?</b> <br> <br> A: You need to change 'speaker mode' to 'UFO' if you use phone to answer the call.<br> <br><b>If the headset which you purchase have no logo or the logo is not AMINY Please return it back. Because that is not the headset in my store!</b><br><br></b>HIGHLY COMPATIBLE AND UNIVERSAL</b><br> Easy and fast pairin