Wireless Bluetooth Headsets, V4.1 In-Ear Sport Stereo Earphones with Mic, for iPhone 6s Plus Samsung Galaxy S7 S6 S5 and Android Phones -Black Bluetooth V4.1 + EDR wireless transmission protocol, compatible with most smartphones Easy and fast, no wire, no transmitter, no software, no setup process Wide signal transmission scale ,10m and 360 Exquisite design for sports, size:40*24*32mm, weight:16.4g Package include: two pairs of replaceable earbuds (large size and small size), one micro USB cable, one product introduction sheet