FKANT Bluetooth V4.1 Headset with Detachable Dual 60mAh Batteries for iPhone Android Samrtphones and More 3D Carving Design: Similar piano finish, smooth 3D carving surface, unique design, like a comic hero, idiosyncratic and elegant. This Bluetooth headset, equipped with high-end CSR V4.1 bluetooth chipset, lower power consumption, ensures that you could answer your phone in a wireless and hands-free way under 10 meters (Depends on environment). CVC6.0 noise canceling technology, allows you to talk with your friends clearly with HD mic, even you are in noisy environment. Dual 60mAh Detachable Battery: High capacity rechargeable lithium-ion battery, strong power allows around 5 hours talking time , or 4 hours music playing time for single EACH battery. With extra 60mAh replaceable battery supplement, it will double your using time. No need to worry about low battery situation. Easy to Use: Voice Prompt function, enables you to know using status right now; Remote Control on headset body, supporting to Volume + / - , Next/Previous song, Pause/Play, Answer/ Reject; Support automatically reporting in-coming phone number, never miss a call; Support Multi-point technology to connect two Bluetooth devices simultaneously; Support iOS battery monitoring. Complete Compatibility: Free access to all most of Bluetooth devices, such as iPhone 6s Plus / 6s, iPhone 6 Plus / 6, iPhone 5s / 5, iPhone 4s /4 , iPad Air / iPad Mini; Samsung Galaxy S6 Edge Plus / S6 Edge / S6 / S5, Note 5/ 4 /3 /2, Samsung Tablets ; HTC A9 / M9 / M8 / M7 ; Google Nexus 6P, etc. Package Includes: 1* Bluetooth headphone, 1* USB charging cable, 1* Extra detachable battery, 1* Earh-hook.If you met any trouble during use, please feel free to Reach US via Amazon message. We will strive to help.