2016 Latest Ture Wireless Bluetooth Earbuds for iOS or Android Smartphones Compact and light-weight design. Double-ear main and subsidiary earpiece design, innovative and excellence. Bluetooth 4.1 technology, better sound quality. Adopt True Wireless Technology, enjoy your wirelessly sports. Intelligent charging box provides fast charge, worry free for endurance. With high capacity lithium battery and low frequency balanced technology function. Multi-functional button, achieved by one click. Strong compatibility, compatible with devices as long as they are bluetooth enables.